EARTH LEAKAGE RELAY RELAY FOR PERMANENT CONTROL OF THE MCCB S TRIPPING CIRCUIT AND ACTUATOR FOR SAFETY CIRCUITS

Transcription

1 April 009 RELAY FOR PERMANENT CONTROL OF THE MCCB S PING CIRCUIT AND ACTUATOR FOR SAFETY CIRCUITS STATIC RELAY FOR MOTOR RE-START AND REACCELERATION www. microener.com

2 ELR Multi-range Earth Leakage Relays for DIN rail or Flush mounting. ELRC Compact ELR with Built-in Toroid Tranformer, for DIN rail or surface mounting. CT- / CTA- Toroidal current transformers TCS Relay for permanent control of the MCCB S tripping circuit and actuator for safety circuits RSR Static relay for motor re-start Certified Quality 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

3 indice PRODUCTS PAGE I DIN RAIL MOUNTING VERSION ELR-C ELR-F ELR-E 6 ELR-6. ELR-m6. ELR-6. ELR-m COMPACT VERSION WITH BUIT-IN TOROIDAL TRANSFORMER FOR DIN RAIL MOUNTING ELRC-B 0 0 DIN RAIL MOUNTING. WITH AUTOMATIC AND RECLOSING FOR CONTROLLING THE EARTH LEAKAGE IN PUBLIC LIGHTING,REFRIGERATION ROOMS,TRAFFIC LIGHTS AND SIMILAR UNATTENDED INSTALLATIONS ELRD-L. ELRD-Lm. ELRC-BL COMPACT VERSION WITH BUILT-IN TOROIDAL TRANSFORMER ELRC- 6 6 FLUSH MOUNTING VERSION DIN 8X8 mm ELR FLUSH MOUNTING VERSIONS DIN 8X96 mm ELR-o. ELR-mo. ELR-v. ELR-mv 0 FLUSH MOUNTING VERSION DIN 7X7 mm ELR-9. ELR-9 0 FLUSH MOUNTING VERSION DIN 96X96 mm WITH REDUCED DEPTH ENCLOSURES ELR-E. ELR-. ELR-M 6 6 FLUSH MOUNTING VERSION DIN 96X96 mm WITH ADVANCED FUNCTIONS ELR-8V. ELR-8tcs. ELR-8MVtcs 0 - FLUSH MOUNTING VERSION DIN 96x96 mm WITH SELF-POWER FOR SMALL NETWORKS INTERRUPTION, FAIL SAFE, ETC. ELR-. ELR-m. ELR-. ELR-m 0 SELECTION TABLE 6 I MULTIFUNCTIONAL AMMETER MEASURING NETWORK S DIFFERENTIALS CURRENT 7 FLUSH MOUNTING DIN 96X96 mm ELM- 7 I CURRENT TOROIDAL TRANSFORMERS CT- 8 CTM. CTS - SPECIAL TOROIDAL TRANSFORMERS 0 CTD-/8, CT-/,CT-/60,CT-/80,CT-/0,CT-/60,CTA-/60 0 CTA-/0, CT-/0, CTA-/0, CT-/ 8 I RELAY FOR PERMANENT CONTROL OF THE MCCB S PING CIRCUIT TCS, TCS, TCS, TCS, I ACTUATOR FOR SAFETY CIRCUIT TCS-A 8 8 I STATIC RELAY FOR MOTOR RE-START AND REACCELARATION RSR-7 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

4 ELR-C DIN RAIL MOUNTING VERSION GENERALITY MODELS ELR-C 0Vac/dc Vac ELR-C - 8 Vac/dc ELR-C Vac/dc OPTIONS T tropicalisation The ELR-C, maintain all the basic characteristics of the DIN 96x96 mm series, although its reduced dimensions. It is one of the relays series, built in a modular enclosure, according with DIN 880 Standard, with a three modules module base 7. mm. Its wide setting ranges allows to select the tripping current, in order that the contact voltage values are maintained below 0V as required by the CEI 6-8 Standard. This is also the suitable answer for a proper selectivity, whenever there are other ELR s or/and RCD s downstream or upstream in the line to be protected. An outstanding characteristic of the present relays, is the permanent control of the Toroidal - ELR circuit. Its interruption brings along the immediate trip of the protection. This allows to identify the anomaly, without waiting to the periodical control, made with the Test push button. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. The ELR-C has the possibility of an automatic or manual reset, selectable by a micro switch and to protect the settings by its sealable transparent front cover. This relay accepts also the possibility of a remote test. It may also be coupled to any of our CT- Toroidal Transformers. LEGEND Current tripping setting potentiometer Tripping time setting potentiometer, I Δ(A) A tx0 x x0 ELR-C M tx x0, 0,, ON 0,0 0, 0, Δt(s) 0, A M tx0 tx x x0, x0 Micro switches for programming: a In position automatic reset; In position 0 manual reset b Selection of the multiplying constant Tripping time, in position K=0; in position 0 K= c,d Selection of the multiplying constant of tripping current: With c, d in position 0 K=0. With c in position, d in position 0 K=. With c, d in position K=0 Push button for Test Push button for manual reset 6 Signalling green LED for Aux. Supply presence 7 Signalling red LED for relay tripped rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

5 ELR-C DIN RAIL MOUNTING VERSION ELECTRICAL CHARACTERISTICS models and value ELR - C Auxiliary Voltage supply 8 Vac/dc 0 Vac/dc 0-00 Vac ± 0% ( standard) Frequency 0 60 Hz Maximum consumption Current tripping ajustment range I N VA 0,0 A K=0, -,A K= -, A K=0 0A* Tripping time adjustment range t 0,0 sec. K= - 0, sec. K=0 Output: changeover contact A 0V Working Temperature C Storing Temperature C Relative humidity <90% Insulation Test Standards Wiring method Mounting according DIN 00, kv 60 seg. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Screw terminals for cross section wires, mm Snap on DIN rail mm Protection degree according DIN 000 IP 0 * By means of external multiplier ( see page 0 ) WIRING DIAGRAM Earth SUPPLY N R S T Ba Test x x0 I 0 7 0,0 I M ON M x0 Reset Aux LEGEND = V ca/cc = 80 V ca/cc 7- = 0 V ca/cc 7- = 0 V ca/cc - ac/dc = 8 V ca/cc - ac/dc 7- = V ca/cc - ac/dc LOAD DIMENSIONS, 7 68 A M tx0 tx 8 x, x0 x0, 0, 0, 0, 0, I Δ(A) ELR-C, ON 0,0 Δt(s) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

6 ELR-F DIN RAIL MOUNTING VERSION GENERALITY MODELS ELR-F 0Vca/cc-0-00Vca I 0,0- A t 0,0 - sec. ELR-F -8Vca/cc I 0,0- A t 0,0 - sec. OPTIONS T tropicalisation The ELR-F, maintains all the basic characteristics of the ELR-C type relay, with its reduced dimensions even. It is the most simple of a series of relays, built in a modular enclosure, according with DIN 880 Standard, with a three modules width (module base 7. mm) Its two setting ranges (current 0,0 or A / time 0,0 or seconds) allow to select the tripping current, in order that the contact voltage values are maintained below 0V as required by the CEI 6-8Standard. This is also the suitable answer in many of the industrial requirements for a proper selectivity, whenever there are other ELR s or/and RCD s downstream or upstream in the line to be protected. An outstanding characteristic of the present relays, is the permanent control of the Toroidal - ELR circuit. Its interruption brings along the immediate trip of the protection. This allows to identify the anomaly, without waiting to the periodical control, made with the Test push button. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. The ELR-F has the possibility of an automatic or manual reset, selectable by a micro switch and to protect the settings by its sealable transparent front cover. LEGEND Manual or automatic reset selection dipswitch. Trippingc urrent selection dipswitch. Tripping time selection dipswitch Push button for Test A M 0,0 0, A M Push button for manual reset 6 Signalling green LED for Aux. Supply presence DELAY t(s) ON CURRENT ΙΔn(A) 0,0 0, 7 Signalling red LED for relay tripped ELR-F rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

7 ELR-F DIN RAIL MOUNTING VERSION ELECTRICAL CHARACTERISTICS models and value ELR - F Auxiliary Voltage supply 8 Vac/dc 0 Vac/dc 0-00 Vac ± 0% ( standard) Frequency 0 60 Hz Maximum consumption Current tripping ajustment 0, or A Tripping time adjustment range t Output: changeover contact WIRING DIAGRAM VA 0,0 or sec. A 0V Working Temperature C Storing Temperature C Relative humidity <90% Insulation Test Standards Wiring method Mounting according DIN 00, kv 60 seg. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Screw terminals for cross section wires, mm Snap on DIN rail mm Protection degree according DIN 000 IP 0 Earth SUPPLY N R S T Ba Test x x0 I 0 7 0,0 I M ON M x0 Aux LEGEND = 80 V ca/ac 7- = 0 V ca/ac 7- = 0 V ca/ac - ac/dc = 8 V ca/ac - ac/dc 7- = V ca/ac - ac/dc Reset LOAD DIMENSIONS, 7 68 A M 8 DELAY t(s) 0,0 0, ON CURRENT ΙΔn(A) ELR-F 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

8 ELR-E DIN RAIL MOUNTING VERSION GENERALITY MODELS ELR-E 0Vac/dc-0-00Vac I 0,0-0,-0,-- t 0,0-0,--- sec. ELR-E -8Vac/dc I 0,0-0,-0,-- t 0,0-0,--- sec. OPTIONS T tropicalisation The ELR-E, maintain all the basic characteristics of ELR-C type, with reduced dimensions. It comes to complete the range of relays, built in a modular enclosure, according with DIN 880 Standard, with a three modules width (module base 7. mm). It has a wide setting ranges and the accurate tripping current selection (by means of dip switches), in order that the contact voltage values are maintained below 0V as required by the CEI 6-8Standard This is also the suitable answer for a proper selectivity, whenever there are other ELR s or/and RCD s downstream or upstream in the line to be protected. An outstanding characteristic of the present relays, is the permanent control of the Toroidal - ELR circuit. Its interruption brings along the immediate trip of the protection. This allows to identify the anomaly, without waiting to the periodical control, made with the Test push button. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. The ELR-E has a manual reset option only, in order to avoid unexpected reset, whilst undergoing repairs and maintenance works. Its sealable front transparent cover may be used to avoid access to the settings to unauthorised persons. It may also be coupled to any of our CT- Toroidal Transformers. LEGEND 6 6 Test push button Reset push button Dipswitches for tripping time setting. Dipswitches for current tripping setting Green LED ON - U aux ELR-E E 6 Red LED trip IΔ n 0,0 0, 0, SETTING AND DELAY t (A) 0,0 0, ( S ) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

9 SUPPLY N L L L Aux S-S T-T Ba 7 6 LEGEND = 80- V ac - = 0-0 V ac - = 0- V ac / dc = 8 V ac/dc - = V ac/dc * Auxiliary supply Uaux: 7, 7 68 ELR-E 8 8 * ELR-E DIN RAIL MOUNTING VERSION ELECTRICAL CHARACTERISTICS models and value ELR - E Auxiliary Voltage supply 8 Vac/dc 0 Vac/dc 0-00 Vac ± 0% (standard) Frequency 0 60 Hz Maximum consumption Current tripping ajustment range I N Tripping time adjustment range t Output: changeover contact VA 0,0-0, - 0, - - A 0,0-0, sec. A 0V Working Temperature C Storing Temperature C Relative humidity <90% Insulation Test Standards Wiring method Mounting according DIN 00, kv 60 seg. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Terminals for cross section cable of, mm Quick mountin on a DIN rail of mm Protection degree according DIN 000 IP 0 WIRING DIAGRAM Earth x x x x CT-/... DIMENSIONS LOAD 0 9 ELR-E 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

10 ELR-6 / ELR-M6 ELR-6 / ELR-M6 DIN RAIL MOUNTING VERSION GENERALITY MODELS ELR-6 / ELR-m6 ELR-6 / ELR-m6 ELR-6 / ELR-m6 ELR-6 / ELR-m6 ELR-6 / 0 setting trip current 0mA Vac -8 Vac/dc Vac OPTIONS F built-in filter for rd harmonic SP fail safe T tropicalisation The ELR-6 -ELRm-6 -ELR-6 -ELRm-6 are serie of Earth Leakage Relays manufactured within a modular enclosure, according with DIN 800 Standard, with 6 modules width (module base 7,mm.). An outstanding characteristic of the present relays, is the permanent control of the Toroidal - ELR circuit. Its interruption brings along the immediate trip of the protection. This allows to identify the anomaly, without waiting to the periodical control, made with the Test push button. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. The optional alarm feature (ELR-6) tripping at 70% of the adjusted tripping current, may advise in advance about a lack of isolation situation. LEGEND Tripping time delay setting potentiometer 8 6 ON 0, 0, 0, 0, ELRm-6 M tx x0, IΔ 0 Tripping current setting potentiometer. Constant selection microswitch: Constant selection for time settings: K = for micro(b) in position 0; K=0 for micro (b) in position ; Constant selection for current settings: K=0, for micros (c-d) in position 0; K= for micro (c) in position and (din position 0; K=0 for micro (c) in position and micro (d) in position. Test push button. ALARM 0,0 contrel t (sec) I Δ(A),, M A tx tx0 x0, IΔ x x0 IΔ A tx0 x x0 IΔ Manual reset push button. 6 Signallig lamp for Aux.Supply presence (green LED). 7 Signalling lamp for relay tripped (red LED) 8 Signalling lamp for alarm threshold over come (Red LED) at 70% of the I N (only for ELR-6 and ELR-m6) Mechanical Signalling (only for ELR-m6 and ELR-m6) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

11 x0, IΔ tx tx0 x x0 ELR-6 / ELR-M6 / ELR-6 / ELR-M6 DIN RAIL MOUNTING VERSION ELECTRICAL CHARACTERISTICS models and value ELR- 6** ELRm-6 ELR-6 ELRm-6 Auxiliary Voltage supply -8 Vac/dc Vac (standard) ± 0% Frequency 0 60 Hz Maximum consumption VA Current tripping ajustment range I N 0,0 A K=0, -, A K= -, A K=0 0 A* Allarm current range - 70% Tripping time setting range 0,0 sec. K= - 0, sec. K=0 Mechanical Signalisation - - Output: changeover contacts A 0V Working Temperature C Storing Temperature C Relative humidity 90% Insulation Test, kv 60 sec. Standards CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Wiring method Screw terminals for cross section wires, mm Protection degree according DIN 000 IP 0 *By means of external multiplier ( see pag. 0 ) - ** Available with current tripping adjustment range 0,0 0A WIRING DIAGRAM - LEGEND ELR-6 / ELR-m6 Earth SUPPLY N L L L Ba * Auxiliary supply Uaux: = 80- V ac - = 0-0V ac - = 0-7V ac = 8 V ac/dc - = V ac/dc ELR-6 / ELR-m6 Earth SUPPLY N L L L Ba * Auxiliary supply Uaux: = 80- V ac - = 0-0V ac - = 0-7V ac = 8 V ac/dc - = V ac/dc Aux Aux CT-/... s s p p Remote Reset * CT-/... s s p p Remote Reset ALARM * 9 LOAD LOAD DIMENSIONS , 0, ELRm-6 ON 0, 0, 90 ALARM 0,0 M t (sec), A IΔ contrel, I Δ(A) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

12 ELRC-B COMPACT VERSION WITH BUIT-IN TOROIDAL TRANSFORMER FOR DIN RAIL MOUNTING GENERALITY MODELS ELRC-B 0 Vac/dc Vac ELRC-B -8 V ac/dc OPTIONS F built-in filter for rd harmonic T tropicalisation The ELRC-B, with all features and wide tripping current and time setting ranges of the ELR s family, has been manufactured in a compact design of 6 modules DIN (7. mm) with a built-in Toroidal Transformer of 8 mm inner diameter for the passage of the cables. All this allows to reduce to the very minimum the wiring, the overall dimensions and to avoid the disturbances, due to the possible electromagnetic fields which could be coupled to the wiring between the T/T and the ELR. It also has a micro switch, which allows the selection of the working method of the end relay. This could be as normally de-energized (non tripped) or normally energized (fail safe). So as for the rest of the ELR s range, the preset ELR is fitted with the appropriated filters at the input circuits to make it immune to external disturbances and the electronically control of the internal circuits and the T/T. LEGEND 0 Internal current transformer Current tripping setting potentiometer. Tripping time setting potentiometer. ELRC-B 0, 0, 0, 0, ON Earth Leaakage Relay 0,0 t (sec) ALARM, contrel, I Δ(A) ELRC-B M tx x0, IΔ A tx0 x x0 IΔ A M tx0 tx x IΔ x0, IΔ x0 N F.S. Micro switches for programming: a In position automatic reset; In position 0 manual reset b Selection of the multiplying constant Tripping time, in position K=0 in position 0 K= c,d Selection of the multiplying constant of tripping current: With c d in position 0 K=0. With c in position, d in position 0 K=. With c, d in position K=0 e In position the output relays will be de-energised at rest, in position 0 the output relays will be energized at rest (fail safe). Push button for Test Push button for manual reset 0 6 Signalling green LED for Aux. Supply presence 7 Signalling red LED for relay tripped rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

13 tx tx0 x0, IΔ x x0 ELRC-B COMPACT VERSION WITH BUIT-IN TOROIDAL TRANSFORMER FOR DIN RAIL MOUNTING ELECTRICAL CHARACTERISTICS models and value ELRC-B Auxiliary Voltage supply -8Vac/dc Vac (standard) Frequency 0 60 Hz Maximum consumption Current tripping ajustment range I N 0,0 A K=0, -,A K= -, A K=0 Tripping time setting range t 0,0 sec. K= - 0, sec. K=0 Built in toroidal transformer s diammeter Output: changeover contacts VA 8 mm A 0V carico resistivo Working Temperature C Storing Temperature C Relative humidity < 90% Insulation Test Standards Wiring method Mounting DIN 00 Protection degree, kv 60 sec. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Terminals for cross section wires, mm Snap on DIN rail mm IP 0 front with closed cover - IP 0 enclosure WIRING DIAGRAM Earth SUPPLY N L L L Ba Wiring diagram with shunt trip of the MCCB and excited end relay (N) for fail safe (F.S.) Connect terminals 0 - to BA (NO contact under non tripped condition) DIMENSIONS LOAD * LEGEND = 00 Vac - = 0 Vac - = 0 Vac/dc = Vac/dc - = 8 Vac/dc * Auxiliary supply Uaux: ELRC-B 0, 0, 0, 0, ON Earth Leaakage Relay ELRC-B 90 ALARM 0,0 M t (sec) 8, A IΔ contrel I Δ(A), 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

14 ELRD-L / ELRD-Lm ELRC-BL DIN RAIL MOUNTING. WITH AUTOMATIC AND RECLOSING FOR CONTROLLING THE EARTH LEAKAGE IN PUBLIC LIGHTING,REFRIGERATION ROOMS,TRAFFIC LIGHTS AND SIMILAR UNATTENDED INSTALLATIONS. GENERALITY MODELS ELRC-BL ELRD-L ELRD-Lm 0 Vac 0 Vac 0 Vac OPTIONS T tropicalisation The ELRC-BL, ELRD-L and ELRD-LM are devices, which maintain the wide range of current and time settings of the ELR series, being in a 6 modules DIN enclosures for single and three phase installations. They are fitted with special filters at the input for avoiding external disturbance, with following alternatives: ELRD-LM: With pre-alarm at 70% of the rated current. ELRC-BL: With built- in toroidal (inner diameter of 8mm). The logical working principles of these relays controls the earth leakage of electrical installations, discriminating between transitory and permanent leakages and allowing, therefore, the reclosing or definitive disconnection of the line under control, depending on the type of leakage. Their most common application is on the Public Lighting Installations and generally unattended installations as Refrigerated Rooms. Sometimes the reason of a section being out of order is due to a lightning which has influenced in a defined area, rebounding to their sections of the line, through the earthing connections. These devices will react as an earth leakage, but in the next control, 0 seconds later approximately, will verify the disappearance of the leakage and if so they ll proceed to the reclosing of the lighting system, under control. It will avoid that the system remains out of order, with the corresponding intervention of labour hand for the manual reclosing As far as its operation is concerned, we can study two leakage types, as follows: As far as its operation is concerned, we can study two leakage types, as follows: A)The first leakage situation is occurring between the relays and the contactor, commanded by the first output relay (R). A typical case for such anomaly, always within the Public Lighting, can be the photo-cell which is earthen through its column. Under these conditions, if the leakage current (ID) is over the set value, the R relay will be energized and the (B) contactor de-energized, after the elapsing of the time delay (t) programmed, disconnecting the supply to the line. B)The second leakage situation and the most common, is the one happening at the contactor s end. Under such given situation, the R relay will be energized and the (B) contactor de-energized, after the elapsing of the time delay (t) programmed, disconnecting the supply to the line. Simultaneously, with the option ELRD-LM, the mechanical signalisation will come on, even in case of definitive disconnection, due to a permanent earth leakage situation, which might imply the total switch off in the Distribution Board. In this particular case, as the leakage disappears when the contactor is de-energized, the device is not blocked but it starts an automatic reclosing cycle, 0 seconds after approximately, the R is de-energized and the contactor reclosed, supplying to the load again. The relay will remain blocked, memorizing the intervention, until the manual reset of the unit by the personnel in charge, either directly on the relay or by remote control system. The ELRD-LM option, with the mechanical signalling, can only be reset manually with the push button at the front plate of the relay. This allows to maintain the earth leakage tripping information although the remote reset of the unit. After 0 seconds of correctly working time of the line under control, after an automatic reclosing cycle, the device will reset itself the interventions memory and the full cycle may start again. On top of the above the ELRD-LM is fitted with an alarm threshold of 70% the tripping current set. It is a very useful information to prevent the tripping due to the cables lack of insulation or at the setting operations of the device. 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

15 ELRD-L / ELRD-Lm / ELRC-BL DIN RAIL MOUNTING. WITH AUTOMATIC AND RECLOSING FOR CONTROLLING THE EARTH LEAKAGE IN PUBLIC LIGHTING, REFRIGERATION ROOMS,TRAFFIC LIGHTS AND SIMILAR UNATTENDED INSTALLATIONS. ELECTRICAL CHARACTERISTICS models and value ELRC-BL ELRD-L ELRD-Lm Auxiliary Voltage supply 0 Vac Frequency 0 60 Hz Maximum consumption VA Setting range for current tripping I N 0,0 A K=0, -,A K= -, A K=0 Setting range for current alarm % I N Setting range for time delay R 0,0 sec. K= - 0, sec. K=0 Setting range for time delay R Delay for R + 0, sec. Self-closing With micro switch in postion AUT Number of self-closing attempts or 6 consecutive max consecutives Time elapsed between self-closings sec sec. Memory reset 0 seconds after operating without any current leakage Mechanical tripping signal - - It comes with the definitive blocking Output relays R NO-C-NC contact A 0V resistive load - R NO contact A 0V resistive load Hole s diameter for passing the cables 8 mm - Working Temperature C Storing Temperature C Relative humidity <90% Insulation Test, kv 60 sec. Standards CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Wiring method By terminal block with cross section cable of, mm Mounting according with DIN 00 Mounting on DIN rail mm Protection degree IP 0 front with closed cover - IP 0 enclosure DIMENSIONS ELRC-BL self-reclosing Earth Leakage Relay contrel, IΔn (A) man tx0 IΔx ΙΔx0 6 r., ON auto tx ΙΔx0, r. 0, 0,0 t (sec) 0, 0, 0, 90 ON ALARM contrel ELRD-Lm 0, 0, t (sec) 0, 0, 0,0,, I Δ(A) A M 0,+tx0 0,+tx IΔ x x0, IΔ x0 8 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

16 ELRD-L / ELRD-Lm / ELRC-BL DIN RAIL MOUNTING. WITH AUTOMATIC AND RECLOSING FOR CONTROLLING THE EARTH LEAKAGE IN PUBLIC LIGHTING, REFRIGERATION ROOMS,TRAFFIC LIGHTS AND SIMILAR UNATTENDED INSTALLATIONS. LEGEND - ELRC-BL Internal current transformer Current tripping setting potentiometer. Tripping time setting potentiometer. ELRC-BL self-reclosing Earth Leakage Relay contrel, IΔn (A) man tx0 IΔx ΙΔx0 6 r., auto tx ΙΔx0, r. 0, 0,0 ON t (sec) 0, 0, 0, man tx0 IΔx ΙΔx0 6 r. a auto b tx c ΙΔx0, d e r. 0 Micro switches for programming: a. In position : manual reset, In position 0: automatic reset, b. Selection of the multiplying constant for tripping time In position : K=0 In position 0: K= c,d. Selection of the multiplying constant of tripping current: with c and d in position 0: K=0, with c in position and d in position 0: K= with c and d in position : K=0 e In position : 6 re-closings In position 0: re-closings Push button for Test Push button for manual reset 6 Signalling green LED for Aux. Supply presence Signalling red LED for relay tripped WIRING DIAGRAM - ELRC-BL Earth SUPPLY N L L L LEGEND B First intervention coil (for de-energising the contactor s coil etc.) Reset B R Trip R * B Second intervention coil (for energising the shunt trip coil of the MCCB, etc.) Remote reset push button (in serie with the relay s power supply) Eventual remote optical signal of tripped relay * Auxiliary supply Uaux: terminals [-] 0-0V 0-60Hz B LOAD 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

17 ELRD-L / ELRD-Lm / ELRC-BL DIN RAIL MOUNTING. WITH AUTOMATIC AND RECLOSING FOR CONTROLLING THE EARTH LEAKAGE IN PUBLIC LIGHTING, REFRIGERATION ROOMS,TRAFFIC LIGHTS AND SIMILAR UNATTENDED INSTALLATIONS. LEGEND - ELRD-L / ELRD-Lm 6 8 Tripping time setting potentiometer. Earth leakage current setting potentiometer. ON ALARM contrel 0, 0,, 0, 0, 0,0 ELRD-Lm, t (sec) I Δ(A) A M 0,+tx0 0,+tx IΔ x x0, IΔ x0 A a b c d M 0,+tx0 0,+tx x0, IΔ IΔ x x0 0 Micro switch for constants (K) choice: a. automatic re-closing with micro switch in position b. constant selection for tripping time setting: K= micro switch in position K = 0 micro switch in position 0 c,d. constant selection for current tripping setting: K = 0, for micro switches in position K = for micro switch ( c ) in position 0 and micro switch ( d ) in position. K = 0 for micro switch ( c ) in position and micro switch (d) in position 0. Push button for Test Manual reset push button 6 Signalling lamp for aux. supply presence (green LED) Signalling lamp for relay tripped or in re-closing cycle (red LED) 8 Alarm signalling LED (only for ELRD-Lm) 9 Mechanical signal (only for ELRD-Lm) WIRING DIAGRAM - ELRD-L / ELRD-Lm Earth SUPPLY N L L L Trip LEGEND B First intervention coil (for de-energising the contactor s coil etc.) B B Second intervention coil (for energising the shunt trip coil of the MCCB, etc.) CT-/... s s p p Remote reset * ELRD-L / ELRD-Lm Remote reset push button (in serie with the relay s power supply) Eventual remote optical signal of tripped relay s-s measuring signal connection (use screened or twisted cable) B Reset p-p test signal connection (use screened or twisted cable) * Auxiliary supply Uaux: terminals [-] 0-0V 0-60Hz LOAD 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

18 ELRC- COMPACT VERSION WITH BUILT-IN TOROIDAL TRANSFORMER GENERALITY MODELS ELRC-/ ELRC-/60 ELRC-/80 ELRC-/0 ELRC-/ ELRC-/60 ELRC-/80 ELRC-/0 0Vac/dc-0-00 Vac - 8 Vac/dc OPTIONS F T built-in filter for rd harmonic Double output contact NO-C-NC (in such a case the relay is renamed as ELRC-/...) tropicalisation The ELRC- have the particularity that they are manufactured with the buit-in Toroidal Transformers. They are specially conceived for those applications, in which the space saving is an advantage (for example, in MOTOR CONTROL CEN- TERS, BATTERIES OF DISTRIBUTION, etc.). Although its reduced dimensions, the relay has as wide setting ranges as the other ELR s series. Such a feature allows to easily choose the tripping current value, in the way that the voltage values are maintained below 0V, in compliance with the CEI Standards. It allows also to perform a tripping selectivity, whenever there are more ELR s or RCD s in the same line. Other important feature is its insensitivity to external disturbances and pulse currents with dc components (presents in the line), due to the filters built on the input circuits, as pe rthe VDE Standards. LEGEND Potentiometer for tripping time setting. 6 a b c d 0 Potentiometer for tripping current setting. Microswitches for constant selection: time: K = with micro (a) in position 0; K=0 with micro (a) in position ; current: K=0, with micros (b-c) in position 0; K= with micro(b) in position and (c) in position 0; K=0 with micros (c-b) in position Test push button. Manual reset push button. 6 Signalling lamp for Aux. Supply presence (green LED). 7 Signalling lamp for relay tripped (red LED) rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

19 ELRC- COMPACT VERSION WITH BUILT-IN TOROIDAL TRANSFORMER ELECTRICAL CHARACTERISTICS models and value ELRC- Auxiliary Voltage supply -8V ac/dc / 0 Vac/dc Vac ± 0% (standard) Frequency 0 60 Hz Maximum consumption Current tripping ajustment range I N 0,0 A K=0, -,A K= -, A K=0 Tripping time setting range 0,0 sec. K= - 0, sec. K=0 Output: change over contacts VA A 0V Working Temperature C Storing Temperature C Relative Humidity 90% Insulation Test Standards Wiring method Terminals protection according with DIN 000, kv 60 sec. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Screw terminals for cross section wire, mm IP0 WIRING DIAGRAM Earth SUPPLY N L L L Vaux BA BA 6 Vaux 0 LEGEND = 0 V ac/dc 0- = 0 V ac 0- = 00 V ac = V ac/dc 0- = 8 V ac/dc DIMENSIONS LOAD H A D type DIMENSIONS (mm) A B C D E F G H E ELRC-/ Ø C B G F ELRC-/ ELRC-/ ELRC-/ rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

20 ELR-7 FLUSH MOUNTING VERSION DIN 8X8 mm GENERALITY MODELS ELR-7 ELR-7 0Vac/dc-0Vac 0-60Hz -8Vac/dc 0-60Hz The ELR-7 is an earth leakage protection device, which maintaining its ample scope of settings, both for current and time delay, it has been built in a flush mounting enclosure DIN 8x8mm with a reduced depth of 7mm, including wiring terminals. This allows to reduce the overall dimensions to a minimum, in those applications in which the space is critical, like in MCC s. The present ELR, so as the others of the ELR s families, has a built-in filter, at the input circuits, which brings it practically immune to external distortions. It is possible to program the tripping current (ma A), the tripping time delay (0,0 sec.) and the working mode of the reset (automatic or manual), at its front plate. OPTIONS F T ACCESSORIES built-in filter for the third harmonic tropicalisation front cover could be supplied to achieve an IP protection degree. The ELR-7 has a micro switch to select the working mode of the end relay, normally de-energized, whilst at rest (no tripped condition) or normally energized ( fail safe). On top of the above, it also has change-over separated contacts and a transparent front cover for protection. Its draw-out wiring terminals rends it very easy to install. LEGEND Current tripping setting potentiometer 8 Tripping time setting potentiometer 6 7 AUTO tx0 IΔ x x0 OFF a b c d e MAN tx x0, IΔ ON 0 Microswitches for programming: a In position automatic reset,in position 0 manual reset b Selection of the multiplying constant Tripping time, in position K=0 in position 0 K= c,d Selection of the multiplying constant of tripping current: With c d in position 0 K=0. With c in position, d in position 0 K=. With c,d in position K=0 e In position the output relays will be de-energized at rest, in position 0 the output relays will be energized at rest (fail safe) Push button for Test Push button for manual reset 6 Signalling green LED for Aux. Supply presence 7 Signalling red LED for relay tripped 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

21 ELR-7 FLUSH MOUNTING VERSION DIN 8X8 mm ELECTRICAL CHARACTERISTICS models and value ELR-7 Auxiliary Voltage supply - 8 Vac/dc / 0 Vac/dc - 0 Vac ± 0% (standard) Frequency 0 60 Hz Maximum consumption Current tripping setting range I N VA 0,0 A K=0, -,A K= -, A K=0 0A* Tripping time setting range t 0,0 sec K= - 0, sec K=0 External Toroidal Transformers and accessories Ct/...serie - setting multiplier,adaptor CT Output: voltage free contacts changeover contacts NO-C-NC A 0V resistive load Working Temperature C Storing Temperature C Relative humidity < 90% Insulation Test Standards Protection degree according DIN 000 Mounting according DIN 700 Wiring method * By means of an external multiplier ( see pag. 0 ), kv 60 sec. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M IP0 front with cover (opt. Ip) - IP 0 enclosure Flush mounting DIN 8x8mm, depth 7mm Draw out terminals for cross section wires, mm WIRING DIAGRAM Earth SUPPLY N L L L x x x x Ba Aux Wiring diagram for MCCB with shunt trip and energized end relay to the trip (FAIL SAFE OFF) for using de-energized (FAIL SAFE ON) connect to the BA the terminals 7-8 (contact NO in no tripped condition) DIMENSIONS CT-/... LOAD ELR * LEGEND = 0-0 Vac - = 0 - Vac/dc = 8 Vac/dc - = Vac/dc * Auxiliary supply Uaux r. 8 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

22 ELR-o / ELR-mo ELR-v / ELR-mv FLUSH MOUNTING VERSIONS DIN 8X96 mm GENERALITY MODELS ELR-v / ELR-mv ELR-o / ELR-mo 0Vac/dc Vac The ELR- and ELRm- series, maintain all the basic characteristics of the DIN 96x96 mm. series, although their reduced dimensions. An outstanding characteristic of the present relays, is the permanent control of the Toroidal - ELR circuit. Its interruption brings along the immediate trip of the protection. This allows to identify the anomaly, without waiting to the periodical control, made with the Test push button. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. ELR-v / ELR-mv ELR-o / ELR-mo OPTIONS F T built - in filter for rd harmonic tropicalisation Following versions available: DIN 96x8 mm ELR-0 and ELR-m0 DIN 8x96 mm ELR-V and ELR-mV With reduced depth of 7 mm. -8 Vac/dc 0 LEGEND 8 ELR-Mo Earth Leakage Relay MEMORY contrel IΔnx0 IΔnx tx0 auto man tx IΔnx0, IΔn (A), 0,0 t (sec) 6 0,0, 0, 0, 0, 0, ON 7 Tripping time delay setting potentiometer Tripping current setting potentiometer Constant selection micro switch: a Automatic reset with micro (a) in position b Constant selection for time settings: K = for micro(b) in position 0; K=0 for micro (b) in position ; c Constant selection for current settings: K=0, for micros (c-d) in position 0; K= for micro (c) in position and (d) in position 0; K=0 for micro (c) in position and micro (d) in position. Test push button. Manual reset push button. 6 Signallig lamp for Aux. Supply presence (green LED) 7 Signalling lamp for relay tripped (red LED) 8 Mechanical Signalling (only for ELRm) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

23 ELR-O / ELR-MO / ELR-V / ELR-MV FLUSH MOUNTING VERSIONS DIN 8X96 mm ELECTRICAL CHARACTERISTICS models and value ELR- O ELR-mO ELR-V ELR-mV Auxiliary Voltage supply -8V ac/dc 0Vac/dc Vac ±0% (standard) Frequency 0 60 Hz Maximum consumption VA Current tripping setting range I N 0,0 A K=0, -,A K= -, A K=0 0A* Tripping time setting range t 0,0 sec K= - 0, sec K=0 Mechanical Signalisation - - Output: changeover contacts A 0V Working Temperature C Storing Temperature C Relative humidity 90% Insulation Test, kv 60 sec. Standards CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Wiring method Screw terminals for cross section wires, mm Protection degree according DIN 000 IP 0 Frontal protection degree Ip (opt. IP) * By means of an external multiplier ( see pag. 0 ) WIRING DIAGRAM - LEGEND Earth SUPPLY N R S T Ba Test x x0 I I ,0 M ON x0 M Reset Aux LEGENDA = 00 V ac 0- = 0 V ac 0- = 0 V ac/dc = 8 V ac/dc 0- = V ac/dc DIMENSIONS LOAD 8 7 r x 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

24 ELR-9 / ELR-9 FLUSH MOUNTING VERSION DIN 7X7 mm GENERALITY MODELS ELR-9 ELR-9 / ELR-9 ELR-9 ELR-9 0 Vac/dc - 0 Vac -8 Vac/dc 0 Vdc Vac OPTIONS F built - in filter for rd harmonic (only for ELR-9) T tropicalisation This new series of relays, for flush mounting according to DIN 7x7 mm, on top of granting a high reliability level, like the previous models, have evolved the technical and mechanical characteristics. ELR-9 This is the basic unit of the new series, is particularly advised in those cases, in which it s required to use a reduced flush mounting ELR s option, without other particular options. One of its main novelties is the reduced depth (60mm including terminals). It may be coupled to any of our Toroidal Transformers of the CT-(close core) and CTA- (split core) families. There are various versions, in order to meet different auxiliary supply requirements. Their wide time and current setting ranges, allows to easily select the tripping characteristics, in order to maintain the contact values below 0 V, as required by the IEC standards. This is also the suitable answer for a proper selectivity, whenever there are other ELRís or/and RCDís downstream or upstream in the line to be protected. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. ELR-9 The present model, on top of the previous basic unit characteristics, it s fitted with following features: a. A double output changeover contact, one can be used for disconnection and the other for an alarm function at 70% of the set current (the selection of the working type of the second contact is being made by means of a dipswitch) b. selectable negative or positive safety (fail safe) by means of a dipswitch 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

25 ELR-9 / ELR-9 FLUSH MOUNTING VERSION DIN 7X7 mm ELECTRICAL CHARACTERISTICS models and value ELR - 9 ELR - 9 Auxiliary voltage supply 0 Vac/dc-0 Vac ± 0% (standard) or -8 Vac/dc Vac ± 0% (standard) or 0 Vdc or -8 Vac/dc Frequency 0 60 Hz Maximum consumption VA Tripping current setting range I N 0,0 A K=0, -,A K= -, A K=0-0A* Alarm current setting range - 70% ID N Tripping time setting range 0,0 sec. K= - 0, sec. K=0 Output: changeover contacts Nr. A 0V Nr. A 0V Working temperature C Storing temperature C Relative humidity 90% Insulation test, kv 60 sec. Standards of reference Wiring type Terminal protection degree according with DIN 000 Frontal protection degree CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Screw terminals / cross section cables, mm IP0 IP (optional IP6) Selectable fail safe for each output relay - * By means of external multiplier ( see pag. 0 ) DIMENSIONS ELR-9 Earth Leakage Relay relë differenziale di terra ELR-9 Earth Leakage Relay relè differenziale di terra r., 0, 0, 0, 0, 0,0, ON ALARM 0,0 ΙΔn(A) t (sec) alarm off alarm on tx0 tx IΔx ΙΔx0, ΙΔx0 FS trip off FS alarm off 7 88, 0, 0, 0, 0, 0,0, ON 0,0 ΙΔn(A) t (sec) auto man tx0 tx IΔnx IΔnx0, IΔnx FAIL SAFE contrel contrel rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

26 * ELR-9 / ELR-9 FLUSH MOUNTING VERSION DIN 7X7 mm LEGEND - ELR-9 Potentiometer for tripping time setting. 6 7 Potentiometer for tripping current setting ways of dip-switches: On/Off he automatic reset. Constant selection for time setting. Constant selection for current setting ELR-9 Earth Leakage Relay relè differenziale di terra, 0, 0, 0, 0, 0,0, ON 0,0 ΙΔn(A) t (sec) auto man tx0 tx IΔnx IΔnx0, IΔnx0 contrel Push button for test. Push button for manual reset. 6 Green Led for auxiliary supply signalling. 7 Red Led for tripped relay signalling. WIRING DIAGRAM - ELR-9 Earth SUPPLY N L L L Aux x x x x Ba * Auxiliary supply Uaux CT/... S-S T-T 8 ouput 7 relay 6 V aux. input current ELR-9 LEGEND V - = Vac / Vdc - = 0 Vac /8 V - = 8 Vac / Vdc - = Vac / Vdc LOAD 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

27 * ELR-9 / ELR-9 FLUSH MOUNTING VERSION DIN 7X7 mm LEGEND - ELR-9 Potentiometer for tripping time setting. 6 ELR-9 8 Earth Leakage Relay relë differenziale di terra 7 Potentiometer for tripping current setting ways of dip-switches: On/Off he alarm feature. Constant selection for time setting. Constant selection for current setting. On/Off the fail safe of the tripped relay. On/Off the fail safe of the tripped alarm., 0, 0, 0, 0, 0,0, ON ALARM 0,0 ΙΔn(A) t (sec) alarm off alarm on tx0 tx IΔx ΙΔx0, ΙΔx0 FS trip off FS alarm off FAIL SAFE contrel Push button for test. Push button for manual reset. 6 Green Led for auxiliary supply signalling. 7 Red Led for tripped relay signalling. 8 Red Led for tripped alarm signalling WIRING DIAGRAM - ELR-9 Earth SUPPLY N L L L x x x x CT-/... LOAD T-T S-S Ba Aux remote (auto reset) ouput relay ALARM ouput relay input current out test signal V aux. ELR-9 * Auxiliary supply Uaux LEGEND Vca - = Vac - = 0 Vac - = 00 Vac V - = 00- Vdc V - = Vac/dc - = 8 Vac/dc 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

28 ELR-E / ELR- / ELR-M FLUSH MOUNTING VERSION DIN 96X96 mm WITH REDUCED DEPTH ENCLOSURES. GENERALITY MODELS ELR-E 0 Vac/dc Vac ELR-E Vac/dc ELR-E / ELR- / ELR-M -8 Vac/dc ELR- / ELR-M Vac ELR- / ELR-M 0 Vdc OPTIONS F built - in filter for rd harmonic (only for ELR- ELR- M) T tropicalisation 6 This new series of relays, for flush mounting according to DIN 96x96 mm, on top of granting a high reliability level, like the previous models, have evolved the technical and mechanical characteristics. ELR-E This is the basic unit of the new series, is particularly advised in those cases, in which it s required to use a reduced flush mounting ELR s option, without other particular options. One of its main novelties is the reduced depth (60mm including terminals). It may be coupled to any of our Toroidal Transformers of the CT-(close core) and CTA- (split core) families. There are various versions, in order to meet different auxiliary supply requirements. Their wide time and current setting ranges, allows to easily select the tripping characteristics, in order to maintain the contact values below 0 V, as required by the IEC standards. This is also the suitable answer for a proper selectivity, whenever there are other ELRís or/and RCDís downstream or upstream in the line to be protected. The instrument, fitted with filters at the input circuits, is practically immune to external disturbances, so as the pulse currents with dc components, complying with the requirements of VDE 066 and project IEC Standards. ELR- The present model, on top of the previous basic unit characteristics, it s fitted with following features: a. a double output changeover contact, one can be used for disconnection and the other for an alarm function at 70% of the set current (the selection of the working type of the second contact is being made by means of a dipswitch); b. selectable negative or positive safety (fail safe) by means of a dipswitch ELR-M In this case the ELR is also fitted with the mechanical signalisation, which enables to keep the information of a tripped relay, without auxiliary supply even. This avoids the dangerous inconvenience of having an energised panel with the door open. 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

29 ELR-E / ELR- / ELR-M FLUSH MOUNTING VERSION DIN 96X96 mm WITH REDUCED DEPTH ENCLOSURES. ELECTRICAL CHARACTERISTICS models and value ELR-E ELR- ELR-M Auxiliary voltage supply 0Vac/dc-0-00Vac (standard) or -8Vac/dc or Vac/dc Frequency 0 60 Hz Maximum consumption Tripping current setting range I N Vac ± 0% (standard) or 0 Vdc or -8 Vac/dc VA 0,0 A K=0, -,A K= -, A K=0 0A* Alarm current setting range - 70% I N Tripping time setting range 0,0 sec. K= - 0, sec. K=0 Mechanical signalisation - - Output: changeover contacts Nr. A 0V Nr. A 0V Nr. A 0V Working temperature C Storing temperature C Relative humidity 90% Insulation test Standards of reference Wiring type Terminal protection degree according with DIN 000 Frontal protection degree, kv 60 sec. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Screw terminals / cross section cables, mm IP0 IP (optional IP6) Selectable fail safe for each output relay - * By means of external multiplier( see pag. 0 ) DIMENSIONS ELR-... Earth Leakage Relay relë differenziale di terra MEM. r. ΙΔn(A),, ON alarm off tx0 IΔx ΙΔx0 FS trip FS alarm ALARM alarm on tx ΙΔx0, off off 0, 0, 0,0 0,0 t (sec) 0, 0, contrel FAIL SAFE rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

30 * ELR-E / ELR- / ELR-M FLUSH MOUNTING VERSION DIN 96X96 mm WITH REDUCED DEPTH ENCLOSURES. LEGEND - ELR-E Potentiometer for tripping time setting. 6 7 Potentiometer for tripping current setting. ELR-E Earth Leakage Relay relè differenziale di terra ways of dipswitches: On/Off he automatic reset. Konstant selection for time setting. Konstant selection for current setting., 0, 0, 0,0 0, 0, Push button for test. ΙΔn(A), ON auto tx0 IΔnx IΔnx0 0,0 t (sec) man tx IΔnx0, Push button for manual reset. 6 Green Led for auxiliary supply signalling. 7 Red Led for tripped relay signalling. contrel WIRING DIAGRAM - ELR-E Earth SUPPLY N L L L Aux 8 CT... x x x x LOAD S-S T-T Ba ELR-E * Auxiliary supply Uaux V - 6 = Vac/dc - 7 = 0 Vac - 8 = 00 Vac /8 V - 7 = 8 Vac / Vdc - 6 = Vac / Vdc V - 6 = Vac / Vdc 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

31 ELR-E / ELR- / ELR-M FLUSH MOUNTING VERSION DIN 96X96 mm WITH REDUCED DEPTH ENCLOSURES. LEGEND - ELR- / ELR-M Potentiometer for tripping time setting. 6 ELR-M 8 9 Earth Leakage Relay relè differenziale di terra MEM. 7 Potentiometer for tripping current setting. 6 ways of dipswitches: On/Off he automatic reset. Konstant selection for time setting. Konstant selection for current setting. On/Off the fail safe of the tripped relay. On/Off the fail safe of the tripped alarm. ΙΔn(A),, ON alarm off tx0 IΔx ΙΔx0 FS trip FS alarm ALARM FAIL SAFE 0, 0, 0,0 0,0 alarm on tx ΙΔx0, off off t (sec) 0, 0, Push button for test. Push button for manual reset. 6 Green Led for auxiliary supply signalling. 7 Red Led for tripped relay signalling. contrel 8 Red Led for tripped alarm signalling. 9 Mechanical signalling of tripped relay (only per ELR-M) WIRING DIAGRAM - ELR- / ELR-M Earth SUPPLY N L L L Aux CT... x x x x S-S T-T Ba * input current test signal output remote (auto reset) 6 ouput relay ALARM ( ) ouput relay ELR- ELR-M * Auxiliary supply Uaux LEGEND Vca - = 00- Vac - = 0-0 Vac - = 80- Vac V - = 00- Vdc V - = Vac/dc - = 8 Vac/dc 9 LOAD 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

32 ELR-8V ELR-8tcs / ELR-8MVtcs FLUSH MOUNTING VERSION DIN 96X96 mm WITH ADVANCED FUNCTIONS GENERALITY MODELS ELR-8V / ELR-8tcs / ELR-8MV-tcs ELR-8V / ELR-8tcs / ELR-8MV-tcs ELR-8V / ELR-8tcs / ELR-8MV-tcs Vac 0 Vdc -8 Vac/dc OPTIONS T tropicalisation 0 ELR-8V The ELR-8V, is being manufactured in a DIN 96x96mm enclosure for flush mounting, It can be connected to any of our toroidal transformers of the CT- (closed core) and CTA- (split core) series. The relay has a wide adjusting range, either in current sensitivity as in time delay. The mentioned setting range allows an easy selection of the tripping value, in order to maintain the voltage contact values below 0V, as required by IEC standard. This will also allow to conduct a tripping selectivity, when there are other ELR s and/or RCD s installed in the same line. There are various versions with different power supplies, in order to meet the end user s requirements. Other important feature is the instrument s insensitivity of the external disturbances, due to the filters installed at the input circuits, so as the insensitivity to the existing direct currents in the line under control, as required by the VDE standards (built harmonic filter is standard). Nevertheless, its most outstanding feature is the frontal display, which is permanently visualising the actual leakage value, with the possibility of selecting the full scale value, between 0 or 00A, so as the possibility of blocking the reading of the tripping leakage values ( hold function). On top of the previous basic characteristics, it s fitted with following features: a. A double output changeover contact, one can be used for disconnection and the other for an alarm function at 70% of the set current (the selection of the working type of the second contact is being made by means of a dip-switch); b. It is possible to select the output relay s contacts position. Fail safe (relay excited at rest) or negative safety (the relay is unexcited at rest). The fail safe offers a notorious advantage, since the relay will open in case of a failure, in order to avoid leaving the installation operative without protection. ELR-8 tcs The present type, without the frontal display, has the possibility of controlling the opening coil and the disconnection circuit. Should there be a failure, the relay would signal same with a LED and a changeover relay (on top of the other contacts) would be activated. ELR-8MV-tcs The ELR-8MV-tcs incorporates all the above functions and features in one, plus the mechanical signal, becomes the most complete flush mounting relay DIN 96 x96 mm. 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

33 ELR-8V / ELR-8-TCS / ELR-8MV-TCS FLUSH MOUNTING VERSION DIN 96X96 mm WITH ADVANCED FUNCTIONS ELECTRICAL CHARACTERISTICS models and value ELR-8V ELR-8 tcs ELR-8MV tcs Auxiliary voltage supply Vac ± 0% (standard) - 0Vdc - -8Vac/dc Frequency 0 60 Hz Maximum consumption Tripping current setting range I N Alarm current setting range VA 0,0 A K=0, -,A K= -, A K=0 0A* 70% I N Tripping time setting range 0,0 sec. K= - 0, sec. K=0 Mechanical signalisation - - Output: changeover contacts Nr. A 0V Nr. A 0V Nr. A 0V Working temperature C Storing temperature C Relative humidity 90% Insulation test Standards of reference Wiring type Terminal protection degree according with DIN 000 Frontal protection degree Shunt coil and disconnecting circuit functionality (TCS function), kv 60 sec. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M Screw terminals / cross section cables, mm IP0 IP (optional Ip6) - Frontal display with digits / f.s. 0A o 00A - Selectable fail safe for each output relay * By means of external multiplier ( see pag. 0 ) DIMENSIONS ELR-8... ΙΔ(A) relë differenziale di terra HOLD ON OFF 0A 00A r., 0, TCS, 0, 0,6 0, ON ALARM 0,0 ΙΔn(A) alarm off alarm on tx0 tx ΙΔx ΙΔx0, ΙΔx0Δ FS trip off FS alarm off t (sec) 0, 0, FAIL SAFE contrel MEM. 9 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

34 ELR-8V / ELR-8-TCS / ELR-8MV-TCS FLUSH MOUNTING VERSION DIN 96X96 mm WITH ADVANCED FUNCTIONS LEGEND - ELR-8V / ELR-8MV-TCS Potentiometer for tripping time setting. 0 9 ELR-8MV-TCS ΙΔ(A) relè differenziale di terra HOLD ON OFF 0A 00A Potentiometer for tripping current setting. 6 ways of dip-switches: On/Off he alarm feature. Constant selection for time setting. Constant selection for current setting. On/Off the fail safe of the tripped relay. On/Off the fail safe of the tripped alarm., 0, TCS, 0, 0,6 0, ON ALARM 0,0 ΙΔn(A) alarm off tx0 ΙΔx ΙΔx0 FS trip FS alarm FAIL SAFE alarm on tx ΙΔx0, off off t (sec) 0, 0, ways of dip-switches: On/Off leakage current reading on display. Full scale selection on display. Push button for test. 7 contrel MEM. 6 Push button for manual reset. 7 Green Led for auxiliary supply signalling. 8 Red Led for tripped relay signalling Red Led for tripped alarm signalling. 0 digits display for current leakage visualisation. Red Led for TCS alarm signalling (only for ELR/8MV-tcs) Mechanical signalling of tripped relay (only for ELR/8MV-tcs) WIRING DIAGRAM - ELR-8V / ELR-8MV-TCS - LEGEND * Auxiliary supply Uaux 0-00 V - = Vac - = 0 Vac - = 00 Vac /8 V - = Vac / Vdc - = 8 Vac / Vdc V - = 0 Vdc V - = Vac - = 0 Vac - = 00 Vac /8 V - = Vac / Vdc - = 8 Vac / Vdc V - = 0 Vdc Vc 7-8=0-0 Vac/dc or Vac/dc 7-9=80- Vac or 8 Vac/dc Earth SUPPLY N L L L Vc BA ALARM / Earth SUPPLY N L L L Vc BA ALARM / ELR-8V ELR-8MV-TCS TCS CT/... LOAD Remote reset 6 INPUT CT/... LOAD Remote reset 6 INPUT 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

35 ELR-8V / ELR-8-TCS / ELR-8MV-TCS FLUSH MOUNTING VERSION DIN 96X96 mm WITH ADVANCED FUNCTIONS LEGEND - ELR-8 TCS ELR-8-TCS relè differenziale di terra / earh leakage relay Potentiometer for tripping time setting. Potentiometer for tripping current setting. 6 ways of dip-switches: On/Off he alarm feature. Constant selection for time setting. Constant selection for current setting. On/Off the fail safe of the tripped relay. On/Off the fail safe of the tripped alarm., 0, TCS, 0, 0,6 0, ON ALARM 0,0 ΙΔn(A) alarm off alarm on tx0 tx ΙΔx ΙΔx0, ΙΔx0 FS trip off FS alarm off FAIL SAFE t (sec) 0, 0, Push button for test. Push button for manual reset. 6 Green Led for auxiliary supply signalling. 7 Red Led for tripped relay signalling. contrel 8 Red Led for tripped alarm signalling. 9 Red Led for TCS alarm signalling. WIRING DIAGRAM - ELR-8 TCS - LEGEND * alimentazione ausiliaria Uaux Earth SUPPLY N L L L CT/... LOAD Vc BA Remote reset ALARM / ELR-8 TCS TCS INPUT V - = Vac - = 0 Vac - = 00 Vac /8 V - = Vac/ Vdc - = 8 Vac / Vdc V - = 0 Vac / Vdc Vc 7-8= 0-0 Vac/cc or Vac/dc 7-9= 80- Vac or 8 Vac/dc rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

36 ELR- / ELR-m ELR- / ELR-m - FLUSH MOUNTING VERSION DIN 96x96 mm WITH SELF-POWER FOR SMALL NETWORKS INTERRUPTION, FAIL SAFE, ETC. GENERALITY The ELR- are new series, which comes to enlarge the range of ELR s. Mentioned relays bring some interesting variables, regarding to the normal characteristics, already available in the precedent families. a. Working with Fail Safe. This is to say, the end relay is de-energized by leakage or lack of supply, but due to a particular time circuit on the end relays, it avoids the tripping of the MCCB, when returning of the Aux,. Supply, working with shunt trip coils. b. Self- supply during sec., In case of a lack of supply. This is an important characteristic, since the relay is capable to overcome the problems related to the classic Voltage holes, whilst the automatic reclosing operations of the lines. c. Trial current during Test, depending on the tripping current set at the relay. The trial current value is automatically set, between 00 and 60% of the I N set on the relay. This allows a real simulation of the leakage current, to which the relay should trip, permitting the individualisation of eventual anomalies of internal circuits or connections. MODELS ELR- / ELR-m ELR- / ELR-m OPTIONS F T built-in filter of third harmonic tropicalisation Vac d. Continuous control of the efficiency on the internal circuits, by tripping when whatever anomaly of the electrical parameters is detected. e. Continuous control on the Toroidal-Relay circuit. The interruption of the circuit makes the ELR to trip, since there is no longer protection on the line. f. Insensitivity to the pulse currents with dc component. LEGEND 8 6 Micro switch for time delay setting. Micro switch for tripping current setting. Push button for Test. relè ELRm- Push button for manual reset. Signalling lamp for Aux. Supply presence (Green LED) 6 Signalling lamp for relay tripped (Red LED) 7 Mechanical Signalling for relay tripped, (only for ELR-m ELR-m) 8 Signalling lamp for overcoming the alarm threshold (Red LED), (only for ELR- ELR-m) contrel 7 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

37 ELR- / ELR-m / ELR- / ELR-m FLUSH MOUNTING VERSION DIN 96x96 mm WITH SELF-POWER FOR SMALL NETWORKS INTERRUPTION, FAIL SAFE, ETC. ELECTRICAL CHARACTERISTICS models and value ELR- ELRm- ELR- ELRm- Auxiliary voltage supply V ac. ± 0% Frequency 0 60 Hz Maximum consumption Tripping current setting range I N VA 0,0, 0, A* Alarm current setting range - 70% Time tripping setting range 0,0 sec. Mechanical signalisation - - Output: change-over contacts A 0V Working temperature C Storing temperature C Relative humidity 90% Insulation Test Standards Wiring method, kv 60 sec. CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008-(999-)/EN 600 (999-09) / EN 6 (996-09) /EN66-(998-0) / EN 66/A (999-0)-IEC ANNEX M / AS 08- / AS 08- Screw terminals for cross section wire, mm Protection degree at terminals according with DIN 000 IP 0 Frontal protection degree * By means of external multiplier ( see pag. 0 ) WIRING DIAGRAM - LEGEND Ip (optional IP) Earth SUPPLY N R S T Ba - = 0-7 Vac - = 0-0 Vac - = 80- Vac Earth SUPPLY N R S T Ba - = 0-7 Vac - = 0-0 Vac - = 80- Vac Aux Aux Trip Alarm ON Trip Trip ON Trip M 6 Remote Reset x x0 I I 0,0 x0 M Reset 6 Remote Reset x x0 I I 0,0 x0 M Reset LOAD DIMENSIONS 96 LOAD 8 86 relè ELRm- r contrel 9 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

38 selection table 6 Characteristics Type MECHANICAL Flush mounting DIN rail mounting Base plate mounting Mechanical signalling Alarm at 70% of the set current TECHNICAL Function select nd contact (trip or alarm) Selectable fail safe k Frontal display TCS function Built-in Toroid Transformer Automatic reset and reclosing AUXILIARY SUPPLY V ac/dc -8V ac/dc 0V dc 0 / 0 / Vac Frequenza 0-60 Hz SELF CONSUMPTION Maximum VA Minimum VA CURRENT SETTING 0,0 A A 0A op. 0,0,A 0, A opz. 0,0 o A 0,0-0,-0,--A TIME SETTING 0,0 sec. 0,0 sec. 0,0 o sec. 0,0-0,-,0--sec. OUTPUT CONTACTS Max: A-0V changeover for tripping changeover for tripping changeover for alarm changeover for alarm TCS TEMPERATURE Storing: C Working: C Relative humidity: 90% INSULATION, kv per 60 sec STANDARDS OF REFERENCE CEI -/IEC /VDE 066/IEC 7/CEI 6.8/ EN 6008 (999-)/EN 600 (999-09)/EN 6 (996-09) /EN66 (998-0) / EN 66/A (999-0)/IEC ANNEX M AS 08- AS 08- GRADO DI PROTEZIONE IP0 IP (option) ELR-E ELR- ELR-M ELR-8V ELR-8tcs ELR-8MVtcs ELR-9 ELR-9 ELR-.0 ELRm-.0 ELR-v ELRm-V ELR7 ELR- ELRm- ELR- ELRm- ELRC- ELR-C ELR-F ELR-E ELR-6 ELRm-6 ELR-6 ELRm-6 ELR-CB ELR-DL ELR-DLM ELRC-BL * only 0 Vca ** only 0-0 Vca 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

39 ELM MULTIFUNCTIONAL AMMETER MEASURING FOR NETWORK DIFFERENTIAL CURRENT FLUSH MOUNTING DIN 96X96 mm These could be used for measuring differential or residual currents (up to simultaneously) with an external toroidal current transformer CT- series GENERAL Environmental working characteristics Working T - +0 C Storage T C Humidity 90% ELM- ELM--8 Standards/ Regulation Safety 600-:00 EMC: EN / EN CISPR-EN0 Electrical compatibility CE models and value ELM ELM -8 Mechanical characteristics Auxiliary supply Flush mounting DIN 96 x 96 mm Depth 6 mm Panel cut out 9x9 mm Weight: kg V 0-60 Hz OPTION C OPTION C 0 60 Vca/dc 90 0 Vca/dc Protection degree Frontal IP Box IP 0 (IP6 with external cover) Current inputs OPTION A inputs 0,0 A rms from external toroidal reducer series CT- inputs 0,0 A rms (from external toroidal reducer series CT-..) 7 OPTION 0 A inputs 0,0 0A (from external toroidal reducer series CT-) Measured parameters A A A A Measuring accuracy Frequency measure Serial outputs - Digital outputs Analog outputs - Display * in this case serial output RS8 can not be used. Current:<% 0 00 Hz photomos Vcc/0 ma or 0 0 Vca/0 ma max for alarms or re-emission pulses (programmable time of pulse m Sec.) Rs8 Communication protocol MODBUS-RTU Baud rate bps outputs 0-0/-0 ma completely programmable 6 bit definition (by external toroidal converter serial/analog ZAO ) * displays with 0 mm red LED ( digit of 0 mm - 7 segments) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

40 CT- TOROIDAL CURRENT TRANSFORMERS GENERALITY CT-/ CT-/0 CTA-/0 CT-/, CT-/60, CT-/80, CT-/0, CT-/60, CTA-/60 CTD-/8 8 The CT series toroidal transformers allow to sense the leaking currents to earth. These transformers have been designed to be coupled to the maximum earth leakage current relays of the ELR series. The T/T s should be installed upstream of the lines or loads to be protected and/or supervised. All active wires (phase and neutral) of the three phase or single phase lines should pass through the internal core of the transformers. It senses, in this way, the currents vectorial addition, in order to transmit the earth leakage current to te secondary. For further applications of the CT toroidal transformers, please refer tao the specific documentation ( I.e. The sensing of the earth leakage current on the distribution transformers). The current T/T s are made of an optimum quality magnetic core, which allows to detect leakage currents of a very low value even. There are two windings coupled in the core, one to detect the signal of a leakage in the line ( to be sent to the relay), and the other for performing the Test. The eventual Test which uses this second winding is performed through various specific ELR s types. A signal from the ELR is sent to the Test winding. This signal generates a flow equivalent to a leakage, which is detected by other winding and resent to the relay and makes it to trip. The selection of the transformer should be made on basis of the dimensions of the wires or bars that should pass through its inner hole. There are split core types available, which allow their installation without disconnecting the actual wiring. 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

41 CT- TOROIDAL CURRENT TRANSFORMERS INSTALLATION All phases should pass through the inner part of the T/T, even the neutral if same is distributed. The earthing wire shouldn t pass through the T/T. The passage direction of all wires has to be the same, but in those applications which do not use Current Transformers in parallel, it is not necessary to respect the introduction direction(p). The output signal should be taken from terminals (S) and (S) and then connected to the ELR for its measure. Terminals - should be connected to the output test of those relays that have this feature available, otherwise they would be left without connection. For this wiring it is suggested to use shielded or twisted cables, placing them as far as possible from power cables. The minimum cross section of the wiring cable should allow to have a maximum resistance of W; as indication it could be said mm max 0 metres, and, mm max 00 metres. The fixing of the transformers could be made on base plate DIN rail or on cables. Should the case be of using the split core transformers, it is necessary to supervise that the contact faces of the half-cores are properly clean, so as the tightening of the fixing side screws and the right electrical wire connections between both half-cores. In the case that the cables are shielded or they have metal protection, these should be earthen downstream of the toroidal transformer. If the shielding of the cable passes through the inner hole, the shielding connection to earth should pass again in the inverse direction by the inner hole (see image). In presence of specific line over currents, which may happen when starting big motors, giving voltage to transformers etc., they could cause nuisance tripping of the relays. Following guidelines could be of help: Install the T/T in a right piece of cable, centre the position of the cable at the inner hole of the T/T and use T/T s with bigger diameter of the cables ( times the cables diameter even). CHARACTERISTICS t y p e CTD-/8 CT-/ CT-/60 CT-/80 CT-/0 CTA-/0 CT-/60 CTA-/60 CT-/0 CTA-/0 CT-/ Core closed closed closed closed closed split core closed split core closed split core closed Inner diameter 8 mm mm 60 mm 80 mm 0 mm 0mm 60 mm 60 mm 0 mm 0 mm 00 x 0 mm Weight 0,0 Kg 0, Kg 0,8 Kg Kg Kg 0,60 Kg, Kg,60 Kg, Kg,8 Kg 8, Kg Min. Meas. current ma ma ma 00 ma 0 ma 0 ma 0 ma 00 ma 0 ma 00mA 00mA Mounting position Any one Application For using with ELR series Working temperature C 9 Stocking temperature C Transformation ratio 00/ Isolation Permanent overload Thermal overload, kv per 60 sec 000 A 0 ka per sec Terminals screws with maximum cross section, mm Protection degree IP0 Standard of reference EMC CEI-EN 008- CEI-EN008- SAFETY CEI. CEI-EN 60 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

42 CT- TOROIDAL CURRENT TRANSFORMERS CTM - CTS - SPECIAL TOROIDAL TRANSFORMERS R S T N CT CTM CTM: It s a multiplier for the current setting of those ELR s up to 0 A. It s placed between the ELR and the measuring T/T ( It isn t a wire passing through transformer) * ELR-... P N R S T S S P S S P S S P S S (A) 6 (B) CT-/S... CTS: It s a summation T/T, which should be used, in those cases when the cables of the system to be protected are bigger than the inner diameter of the T/T s. In such a case Ct s should be used and installed in the line. The CT s are connected to the summation T/T s and these to the ELR. (For more information, please refer to the applications notes described hereinafter) ELR-... DIMENSIONS TABLE type DIMENSIONS (mm) A B C D E F G H K CTD-/8 8, - 8, - 8 CT-/ CT-/ CT-/ CT-/ CTA-/ CT-/ CTA-/ CT-/ CTA-/ CT-/ CT-M CT-S DIMENSIONS DIMENSIONS CTD-/8 B Residual current transformer CTD-/8 A D K G F H Mounting on rail mm according with DIN 00 modules of 7, mm CT-/, CT-/60, CT-/80, CT-/0, CT-/60, CTA-/60 H G F * Fixing groves only available on CT- /60 and CTA-/60 types The CT-/60 and CTA-/60 type dimensions are identical The CT-/0 and CTA-/0 type dimensions are identical * A * * Ø C B E * D 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

43 B E S S A CT- TOROIDAL CURRENT TRANSFORMERS DIMENSIONS - CTA-/0 D DIMENSIONS - CT-/0, CTA-/0 H H CTA-/0 B CTD-/8 CTA-/0 K Residual current transformer CTD-/8 D H A D G F Ø CT-/0 CTA-/0 le dimensioni dei modelli E CT-/0 e CTA-/0 sono identiche C B K A G F A montaggio su profilato mm secondo DIN 00 C F moduli da 7, mm B E G D H K DIMENSIONS - CT-/ CT-/, CT-/60, CT-/80 CT-/0 CT-/60 CTA-/60 CTA-/0 CTD-,mm H C H B mm D Residual current transformer CTD-/8 S Test G F A E * * Ø C B A E D S S * B * A G F Ø C B K E A *asole di fissaggio disponibili solo sui modelli CT-/60 e CTA-/60 Le dimensioni dei modelli CT-/60 e CTA-/60 sono identiche D H 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

44 CT- TOROIDAL CURRENT TRANSFORMERS APPLICATION NOTE FOR S ELR SERIES. S APPLICATION WITH CT-/S.. APPLICATION This application is particularly useful in those cases, in which it is impossible to embrace all conductors (supply bars) of the system, with only one transformer. In this case, It is possible to have Earth Leakage Protection, by using Ct s and one of our special toroid transformers (exclusively made by us, based on the winding rate of the Ct s), complying with the wiring diagram, described below. For this application the Ct s should have: the same transformation ratio (A secondary), same power (0 VA at least) and class. On the other hand, it is important that the Ct s are mounted, in such a way that the script P is orientated upstream, towards the line to be protected, and the various secondaries exactly as per the diagram... WORKING PRINCIPLES QWhen there is no earth leakage, the vectorial addition of the currents sensed by the Ct s, is equal to zero. Thence, there is no current flowing in the windings related to our terminals and 6 (in our special toroid). There isn t any voltage generated in our terminals and therefore, which should make the ELR to trip. When there is a leakage, otherwise, the vectorial addition of the currents sensed by the Ct s is different to zero. Thence, a voltage is generated through the terminals and, making the ELR to trip. For this application, it is advisable to have a tripping threshold of the ELR, not lower than a /00 of the rated current of the system to be protected. P N R S T S S P S S P S S P S S (A) CT-/S 6 (B) TO RELAYS ELR SERIES. ELR S APPLICATION WITH GROUND WIRE OF TRANSFORMERS..APPLICATION This application is particularly indicated when the system is supplied through Transformers, working in parallel. In fact, it could be impossible to protect the line with ELR s sited immediately downstream of the transformers. Since it wouldn t be possible to establish which part of the Current Leakage to Ground (clg) is borne by one or the other transformer. This brings us to a point, in which is practically impossible to establish exactly the threshold of the tripping value of the relays. EXAMPLE: Suppose that we wish to protect an installation, which requires that the ELR should trip when the clg is equal to A. Should we install ELR s with A threshold, it would certainly be required a higher value of clg, in order to make the ELR to trip. On top of the above, in case of an equal distribution of the current leakage between both transformers, it should be required a clg = 0A, in order to make the ELR s to trip. Otherwise, if we adjust the tripping threshold to.a, it could be the case that one transformer is bearing fl of the clg and the other only. Thence the ELR of the first transformer would trip before the A of clg are reached. Other factor to be considered, is the eventual separation of a transformer from the parallel, during low load demand periods. In this case the eventual clg is totally re-closed through the earth of an unique transformer and the tripping threshold should be establish exactly as A, under these conditions. The solution of the problem is given in our diagram... WORKING PRINCIPLES Our diagram here below shows the solution, based in connecting the star centres of both transformers together to earth with an unique wire, which has passed through our toroidal transformer before. It is based in the fact that any current leakage to ground can t be reclosed but through the star centres of the transformers. With the toroidal, positioned as per our diagram, it is measured therefore the total current leakage to ground. Back to the above mentioned example, we should establish as A the tripping threshold value, with the assurance that the ELR will trip, when the clg goes above the A threshold. R S T N TR TR TRM ELR RELAYS LOAD 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

45 CT- TOROIDAL CURRENT TRANSFORMERS. APPLICATION OF ELR s ON VARIOUS LINES IN PARALLEL.. APPLICATION This application can be used whenever there are various connecting lines through two bar systems OMNIBUS. In this case, the use of ELR s with their corresponding T/T s,per each connecting line, it could give operation inconveniences; since the vectorial addition of the currents, on each connecting line, might not necessarily be equal to zero. It could be the case that, with perfectly equal lines, there could be a difference of current distribution, due to a contact resistance difference (in phase R, for example), whilst the adsorbed current by the load might be equally distributed, in the other lines. All this brings along that, there might be a leakage signal, at the toroidals terminals -, which could be sufficient to make the ELR s to trip, without any earth leakage. With this kind of distribution, it is advisable to go to the wiring diagram, in which there are used as many T/T s as connecting lines, all of them orientated towards the and terminals of our ELR... WORKING PRINCIPLES when there is no leakage, although with a non uniform current distribution, as mentioned in the above paragraph., the originated signal at the first toroidal, is totally void by the leakage signal originated at the second toroidal, since the signal can t be but in opposition, and the ELR s terminals won t receive any signal and the ELR won t trip therefore. Otherwise, when there is an earth leakage, independently of whatever it might be the current distribution, the signals summation, being measured by the various Tt s, meet at the and terminals of the ELR, which will trip therefore. This application is valid for a maximum of 6 Tt s connected in parallel. In those cases, in which a higher number might be required,, it is advised to contact us. For this application, it is advisable to have a tripping threshold not below /000 of the nominal current of the system to be protected. R S T N R S T N R S TR ELR RELAY LOAD TR TRM N SECTION SECTION SECTION Tn T T ELR RELAY T N LOAD. MEDIUM VOLTAGE LINES APPLICATION Should an ELR be used in MV lines, it is advisable to use the built-in filter for third harmonic version. R S T N Ground Wire RS T N Ground Wire Fig. Ground Wire Fig. Nota: If there is an earthing circuit, it should be placed outside of the T/T (fig). When the cable is fitted with a metallic screen and it gets through the T/T, the earthing connection should be as (fig. ) 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

46 TCS RELAY FOR PERMANENT CONTROL OF THE MCCB S PING CIRCUIT GENERALITY TCS- / TCS- TCS- / TCS- MODELS MODELS TCS circuits -8Vac/dc / esec. DIN rail modules TCS circuits -8Vac/dc / esec. flush mounting DIN 96x96mm TCS circuits Vac/dc / esec. DIN rail modules TCS circuits Vac/dc / esec. flush mounting DIN 96x96mm OPTIONS OPTIONS T tropicalization T tropicalization The TCS is devoted to control the MCCB s disconnection circuits (trip) or the safety circuits. In fact, whenever there is an interruption in a circuit (Output relay of any given protection MCCB s shunt trip coil and the connection between the relay and the coil), and it is required that the MCCB trips due to any anomaly in the line, such MCCB will be unable to trip. Provided that the system has been installed with other protections, some other Ciruit Breaker will trip and the result will be the loss of service of other sections of the system, which might be most important. Should the MCCB be the sole protection, the use of the TCS is most important, because the working guarantee of the tripping circuit becomes critical, in this particular case. An important application is with the safety or emergency circuits, according with the CEI 6-8/7.. Standard, when using shunt trip coils for emergency reactions, as the starting of a fire fighting system, por example. The relay has an auxiliary supply electrically separated from the Control Voltage. In normal conditions, with auxiliary supply to the TCS relay, the OK green LED will glow. If there is any anomaly on the disconnection or safety circuit, the ALARM red LED will glow and the OK green LED will be switched off.the double changeover end relay will be de-energized enabling a possible acustic signal and a remote repetition. Same signal is shown with tripped breaker. On top of the above it is possible to detect the loss of supply on the auxiliary circuits, by supplying the TCS with same auxiliary voltage. If the end relay is normally energized (fail safe), when there is a lack of supply, the end relay will be de-energized, as per anomaly situations, but in this case the LED s at the front will be switched off. 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

47 TCS RELAY FOR PERMANENT CONTROL OF THE MCCB S PING CIRCUIT ELECTRICAL CHARACTERISTICS models and value TCS- TCS- TCS- TCS- Auxiliary Voltage supply 8 Vac/dc ± 0% Vac/dc ± 0% 8 Vac/dc ± 0% Vac/dc ± 0% Frequency 0 60 Hz Maximum consumption,,va depending on Vaux Current of circuit under control 6 ma ma 0-80V ma 0V 6 ma ma 0-80V ma 0V Voltage of circuit under control 0V ac/dc 8-9 terminals 60V ac/dc 7-9 terminals 0 60V ac/dc 8-9 terminals 0 0V ac/dc 7-9 terminals 0V ac/dc 8-9 terminals 60V ac/dc 7-9 terminals 0 60Vac/dc 8-9 terminals 0 0Vac/dc 7-9 terminals Tripping Time delay 0, seg. Depending on input Voltage 0, seg. Depending on input Voltage 0, seg. Depending on input Voltage 0, seg. Depending on input Voltage Reset Time 0,6 seg. Depending on input Voltage, seg. Depending on input Voltage 0,6 seg. Depending on input Voltage, seg. Depending on input Voltage Output:. change-over contacts A 0V Working Temperature C Storing Temperature C Relative humidity < 90% Insulation Test, kv 60 sec. Pulse Test kv,/0 microsec. Standards CEI - - IEC -80 Wiring method Drawing out screw terminals for cross section wires, mmq Protection degree according DIN 000 IP 0 Ip Mounting according DIN 00 Snap on DIN rail mm - modules Flush mounting 96x96mm Optional resistance (R) to be used for the monitoring of the circuit also when the switch board is open. The value of the resistance change for the voltage of the circuit. Vac/dc R=0,8 kohm W 8 Vac/dc R=,,kohm w 0 Vac/dc R=8, kohm 7W 0 Vac/dc R= kohm 0W 00 Vac/dc R=9 7kohm W Vac/dc R=0,8 kohm W 8 Vac/dc R=,,kohm w 0 Vac/dc R=8, kohm 7W 0 Vac/dc R= kohm 0W 00 Vac/dc R=9 7kohm W 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

48 TCS RELAY FOR PERMANENT CONTROL OF THE MCCB S PING CIRCUIT DIMENSIONS - TSC-, TSC-, 7 68 ELR-E 8 Type TCS- LEGEND - TCS-, TCS- 6 Test push button Signalling lamp of OK circuit (green LED) Signalling lamp of anomaly in the circuit (red LED) Terminals for auxiliary supply Type TCS- Connecting terminals to the circuit under control 6 Output terminals of the end relay with double changeover WIRING DIAGRAM - TCS-, TCS- 6 R N R S T Vc Ba Vaux R P TCS Vaux - = Vac/dc - = 8 Vac/dc Vc 9-8 = Vac/dc 9-7 = 8 Vac/dc TCS Vaux - = 0 Vac/dc - = 0-0 Vac/dc - = 80- Vac/dc Vc 9-8 = 0-0 Vac/dc 9-7 = 80- Vac/dc rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

49 TCS RELAY FOR PERMANENT CONTROL OF THE MCCB S PING CIRCUIT DIMENSIONS - TCS-, TCS TCS Trip Circuit Supervision Relay r. OK ALARM contrel 9 0 LEGEND - TCS-, TCS- TCS contrel OK Trip Circuit Supervision Relay ALARM s.n. MADE IN EU Vc voltage control elettronica TCS V TCS- 0-60V * V aux: * V aux: - = 0V ac/dc - = V ac/dc - = 0V ac/dc - = 8V ac/dc - = 00V ac V c: V c: - = V ac/dc - = 00-0Vac/dc - = 8-60V ac/dc - = 00V ac ouput relays V aux. R R * Test push button Signalling lamp of OK circuit (green LED) Signalling lamp of anomaly in the circuit (red LED) WIRING DIAGRAM - TCS-, TCS- R N R S T Vc Ba Vaux R P TCS Vaux - = Vac/dc - = 8 Vac/dc Vc - = Vac/dc - = 8 Vac/dc TCS Vaux - = 0 Vac/dc - = 0 Vac/dc - = 00 Vac/dc Vc - = 0-0 Vac/dc - = 00 Vac/dc rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

50 TCS-A ACTUATOR FOR SAFETY CIRCUIT GENERALITY MODELS TCS-A circuits -0 Vca OPTIONS T tropicalisation 8 As required by CEI 6/8, the condition of maximum safety in the opening of the switches is obtained with the use of buttons with normally closed contacts associated to an opening coil at minimum voltage. This solution is critical because any voltage interruption (even short) creates an out of service with the relative consequences. The TCS-A device has the benefits to have the command (button, relay, etc.) with normally closed contacts and at the same time those of the shunt trip opening coil (immune from defect of opening on voltage brake) instead of that a minimum voltage. This device, as the TCS classical, control the efficiency of the safety network or the opening circuit of the switch associated. FUNCTIONING The classic application of the device is to command a switch with shunt trip opening coil (BA) using a series connection of safety buttons. When the device is connected as showed in the picture, with Vc present but without Vaux, the relays are de-energized, the BA don t receive energy and the relay RA is in alarm status. When the Vaux is supplied the led ON turn ON, the Alarm Relay (RA) is energized, the device is in condition of normal functioning, the Trip Relay (RT) after 80 ms is energizing, after others 80 ms the Safety Relay (RS) is energizing and the Led Ready turn ON. In this condition the device is ready to receive the command to trip from the normally closed safety button (NC). After 0 ms from the trip request (NC button pressed) the RT relay is de-energized while the BA actuator is energized, opening the associated switch. The trip status is signalled on the device with the led turned ON and the READY led turned off and with a remote lamp in parallel to the BA coil. This condition can be stored. In this way it s possible to use safety buttons with instantaneous opening (without mechanical retain). The memory can be resetted using the button on the device or using the remote button (free of voltages). Short-circuiting the terminal 8 and 9 the device will be resetted after the trip request. With the button of the device is possible perform a test without to use the safety buttons. The safety button are checked in the perfect condition of functioning (without short-circuit on terminals or on connection). These buttons should contain a resistance of 000Ω /W or W % after the connection terminals (see wiring connection). This presence allows at the device to detect when there are short-circuit on the terminals or on connection. In application with more of buttons, the button that exceed the limit of should not be of the self-control type. The number of the self-control buttons should be exactly balanced setting the number on the dip-switches on the device. It s important to set the number correct because an error could create some problem to the device that don t recognize the number and the condition of the connected button. When on one or more of the self-control buttons there is an abnormal connection, the Push button Alarm Led, on the device, turn on and the Alarm relay is de-energized, the exchange commute for the remote signalling; This condition is only of alarm and don t cause the system Trip. In addition to the fail safe, on the power supply, the device also contain TCS function (control open circuit). The device can also control the efficiency of the source of control voltage (Vc) and the circuit connection to the BA. For a fault on a BA circuit, it s possible to have the two following situation:. With Trip-BA switch set to OFF, the BA Alarm led is turning ON and the RA relay is de-energized with the signalling of remote Alarm. When the fault disappears the BA Alarm led is turning off and the RA relay energized, the remote signalling disappears. The Trip relay (RT) doesn t change his status.. With Trip-BA switch set to ON it s possible to have one of the following cases:.. With Auto-Reset (Remote Reset) not inserted the Trip memory will be activated, the Trip Led will turn on, the led READY will turn OFF and the Trip relay (RT) will be de-energized, the same way of the BA trip. This condition is hold up to the that turn off the memory. If in the meantime the fault was removed, everything come back to the normal, otherwise, even if the TCS-A is come back in the READY condition, the ALARM BA led remain ON and the RA relay is still in alarm. It s obvious that this i san emergency condition and the power switch should not be closed because it would be not able to open by electricity. 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

51 TCS-A ACTUATOR FOR SAFETY CIRCUIT. With Auto-Reset (Remote Reset) inserted (short-circuit between 8 and 9 terminals) the Trip Relay (RT) is de-energized for 0 00 ms and after it come back energized. This caused the momentary closing of the contacts of the and terminals. With this contacts and with the RA contacts it s possible to create a specific remote signalling of fault of the BA circuit, with priority greater than the alarm signalling for button in short-circuit. If in the condition of normal functioning the Vaux is missing, the device has a duration of about second. Exceeded this time there are the following conditions:. With the Trip switch set to OFF, the Safety Relay (RS) will be de-energized before of the Trip Relay (RT), without the BA tripping.. With the Trip switch set to ON, the Trip Relay (RT) will be de-energized before of the Safety Relay (RS) causing the BA tripping. ELECTRICAL CHARACTERISTICS models and value TCS-A Auxiliary power voltage Vaux Max Consumption Line voltage BA Functioning Voltage NC contacts 0Vca 0 60Hz VA (W) 0 0Vca/cc max 0Vcc Current of NC contacts Min. 0,mAcc Max 0,7mAcc BA command output Alarm output Input NC contacts Signalling on device (led) Dip-switch Push-buttons NC command buttons Box Working temperature Storing temperature Relative Humidity Trip from NC Ready from Vaux Trip impulse when missing Vaux Trip when missing Vc Duration without Vaux Norme di riferimento contact A 0Vca free of voltage (fail safe) change A 0Vca free of voltage (fail safe) n monitored (selectable using dip-switches)+ number unlimited and uncontrolled ON: presence of power supply. READY: device ready to work. : Tripping. BA: BA fault. Pushbuttons: NC contact fault n : for monitored contacts n Trip: ON/OFFOFF (for possible trip in case of lack Vaux) n Trip BA: ON/OFF (for any request for trip in case of BA fault circuit (test of the device except the NC buttons). (to reset the Trip memory REMOTE using a free voltage NO contact (short-circuiting the terminals 8 and 9 is performed the autoreset of the Trip memory MAX n monitored (it s important to place the number of dip-switches correct, corresponding to the amount of controlled external buttons). Resistance to be inserted in the button = 000Ohm W. 6 DIN modules -0 C +60 C. - C +8 C 90% without condensing 0ms about 60ms about 00ms (control voltage) or fault on BA about second CEI 6-8/7.. - CEI CEI EN 600- (safety) - CEI EN 6- (safety) - CEI EN 66- (EMC compatibility) - CEI EN 66-- (EMC compatibility) 9 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

52 TCS-A ACTUATOR FOR SAFETY CIRCUIT DIMENSIONS TCS-A Trip Circuit Supervision 0, 0, ON BA ON t (sec) 0, pushbuttons READY A 0, 0,0 ALARM ALARM 0 M,, trip off trip-ba I Δ(A) CONTACTS contrel PUSHBUTTONS contrel ELRD-Lm 0,+tx0 0,+tx x0, IΔ IΔ x x0 LEGEND TCS-A Trip Circuit Supervision 0, 0, ON BA ON t (sec) 0, pushbuttons READY A 0, 0,0 ALARM ALARM 0 M,, trip off trip-ba I Δ(A) CONTACTS contrel PUSHBUTTONS contrel ELRD-Lm 0,+tx0 0,+tx x0, IΔ IΔ x x0 0 CONTACTS PUSHBUTTONS Micro-switches for setting Test push-button Reset push-button GREEN LED for network presence RED LED for relay ready to trip and RED LED trip RED LED to signalling coil and push button status WIRING DIAGRAM TCS-A Trip Circuit Supervision 0 Vaux variant Vaux (x Vac 0-60Hz CONTACTS PUSHBUTTONS BA pushbuttons ALARM trip trip BA ON READY SAFETY RELAY RS RELAY RT ALARM RELAY RA Vaux (x 0Vac 0-60 Hz) MAX BA Vc (-0 Vac/dc) EXTERNAL 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /

53 RSR-7 STATIC RELAY FOR MOTOR RE-START AND REACCELERATION GENERALITY UNDECAL SOCKET MODELS RSR-7 RSR-7 OPTION Z M Undecal support LEGEND circuits 0V 0 60Hz circuits V 0 60Hz Restraint spring for fixing Undecal support The RSR-7 type relay for re-start and reacceleration is deigned to perform the automatic motor restarting, after control and protection device opening, as a consequence of a momentary line voltage interruption or drop-out. The RSR-7 relays allow, after the stop of the motors, the automatic restart with a correct sequence depending of the working process. The RSR-7 relays are housed in a case for flush mounting or panel mounting or on DIN rail mm on extractible undecal socket type. On front panel there are potentiometers and micro-switches for settings and one LED to indicate the functional status. FUNCTIONALITY The RSR-7 relay is used in association with an holding position contact. On the relay is possible to set a memory time from 0. to 60 seconds and a delay time from 0. to 000 seconds. Anytime a voltage lack (or with a value less of 6% of the rated voltage) and subsequently the voltage restores (at least the 90% of the rated voltage) within the memory time set the re-start motor output will be activated after the delay set. If the voltage restores after the memory time, the automatic re-start will not happen, while the voltage restores in a time less than 0. seconds (the minimum memory time), the motor will reaccelerate. If the reacceleration function is activated and the voltage go back in a time less than 0. seconds (maximum time for reacceleration) the motor will reaccelerate immediately, if the reacceleration function is not activated after the delay time the motor will restart automatically. The main circuits are: supply circuit and voltage control circuit of contactor control and of memory activation with separation by photo-coupler circuit of motor stop control by PA pushbutton (stop) and quick memory shutdown separated by photo-coupler. circuit for final relay closing and control circuit are managed by microprocessor Delay adjustment trimmer Memory adjustment trimmer Green led to indicate the relay status ON - STANDBY-RE-START RSR-7 Re-Start Relay operating 6 status 8 0, 6 ON 0, 0 Memory (sec) Delay (sec) F F Memory x x0 x x00 Delay x0 LED operating status: contrel ON Standby Re-start 6 Sliding contact switch for memory rating Sliding contact switch for delay rating 6 Sliding contact for reaccelerate function 9 rue de l'université F99 NOISY LE GRAND Tel: /Fax: / info@microener.com /