EDS/ Insuation faut ocators for ocaisation of insuation fauts in unearthed DC, AC and three-phase power suppy systems (IT systems) EDSxx_D D_XXEN/.
EDS/ Insuation faut ocators for ocaisation of insuation fauts in unearthed DC, AC and three-phase power suppy systems (IT systems) Product description The insuation faut ocators EDSx are used in with the ISOMETER iso-d-p or the ocating current injector PGH to ocate insuation fauts in unearthed power suppy systems (IT systems). They detect ocating current signas generated by the insuation monitoring device iso-d-p or IRDH or the ocating current injector PGH and evauate them correspondingy. Up to measuring current transformers can be connected to an EDSx. In tota, up to insuation faut ocators can be connected via an RS- interface (BS bus protoco) and thereby up to outgoing circuits can be monitored. Insuation faut ocator EDS-L Device features Universa system concept Moduar design, therefore easiy adjustabe to the given circumstances Measuring current transformers avaiabe in various sizes and versions CT monitoring measuring channes for measuring current transformer series W, WR, WS, W AB Faut memory behaviour seectabe Configuration possibiities enabe individua adjustments Up to EDS insuation faut ocators in the system, measuring channes Response sensitivity: EDS ma, EDS. ma AC residua current measurement with configurabe response vaue Two aarm reays with one N/O contact each N/O or N/C operation seectabe Externa test/reset button via digita inputs Indication via iso-d-p or LEDs Centra indication of fauty outgoing circuits Seria interface RS-, BS bus address range Connection to higher-eve contro and visuaisation systems possibe Certifications Appication Insuation faut ocation in AC, AC and DC IT systems Main circuits and contro circuits in industria pants and ships Diode-decouped DC IT systems in power pants Systems for medica ocations Function description When an insuation monitoring device detects the occurrence of an insuation faut, it starts the insuation faut ocation. In the event of a first insuation faut, a residua current fows in IT systems that is primariy defined by the system eakage capacitances. The basic idea of the faut ocation is therefore cosing the faut current circuit for a short period of time via a defined resistance. Due to this principe, a ocating current, which contains an evauabe signa, is driven through the system votage. The ocating current is generated by the ocating current injector at reguar intervas. It is imited in ampitude and time. Thereby, the system conductors are aternatey connected to earth via a defined resistance. The resuting ocating current depends on the size of the existing insuation faut and the system votage. It is imited depending on the settings. During project panning it is important to observe that, even in unfavourabe cases, there is no system part on which this ocating current may cause harmfu reactions. The ocating current fows from the ocating current injector via the ive ines to the insuation faut position taking the shortest way. From there, it fows through the insuation faut and the PE back to the ocating current injector. This ocating current puse is detected by the measuring current transformer on the insuation faut path and signaed by the connected insuation faut ocator. Device variants EDS -L Aarm messages are directy indicated on the device dispay EDS -S Aarm messages are dispayed on the respective ISOMETER Option W Devices with the suffix W feature increased shock and vibration resistance. The eectronics is covered with a specia varnish to provide increased protection against mechanica stress and moisture. Standards Observe the appicabe nationa and internationa standards. The EDSx series meets the device standards: DIN VDE - (VDE -):- DIN EN - (VDE -):- IEC -:- DIN EN (VDE -):- EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ System variants The insuation faut ocators EDS and EDS differ depending on their response sensitivity. The EDS is suitabe for main circuits. The EDS can be used in contro circuits and in circuits in medica ocations. EDS EDS -L -S -LAB- LED BS bus I ΔL = ma Main circuits Digita inputs and outputs LED BS bus I ΔL =. ma Contro circuits Digita inputs and outputs No LED BB bus I ΔL = ma Main circuits No interna votage suppy No LED BB bus I ΔL =. ma Contro circuits No interna votage suppy LED BS bus I ΔL =. ma* Contro circuits W AB measuring current transformer Digita inputs and outputs * High response sensitivity with arge system eakage capacitances. Operating and dispay eements EDSx EDS-S EDS-L EDS I L I n EDS I L I I nl ALARM I L ALARM I n CHANNELS SLAVE ADDRESS TEST RESET MUTE - The LED "" is it when the device is switched on and fashes during power up unti the device is ready for operation. - The LED "" is it when the faut ocation is active and the RS- interface communicates. - The LED "" ights either when there is a device faut, a faut of the measuring current transformers or an error message e.g. due to ow-frequency residua currents, externa magnetic fieds, etc. - The LED "ALARM I ΔL" is the main aarm. The LED ights when an insuation faut is detected (EDS function) on one of the measuring channes. - The LED "ALARM I Δn" ights if the set response vaue is exceeded. The factory setting for the response vaue is A. This is the aarm LED for residua currents. - TEST button: Initiate sef test. - The channe LEDs " " ight up if an insuation faut has been detected on the respective measuring channe. They fash if the measuring current transformer circuit is interrupted or short-circuited. - RESET button: resets the faut memory. The faut memory can ony be reset if it is activated and the faut has disappeared. - SLAVE ADDRESS: Device address setting. - MUTE button: Deactivates the buzzer. EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Connection EDS-S Connection EDS-L Us * k-/i- A/+ A/- L L L L L L L L L L L L I EDS L k A/+ A/- I L I I nl TEST RESET X I ALARM I n SLAVE ADDRESS ALARM I L CHANNELS EDS EDS n MUTE BB-Bus K K K K K K K K K K K K A A L L L L L L L L L L L L K K K K K K K K K K K K k k-/i- X * - For UL appication two A fuses must be used! Connection to the X interface (Bottom view) OFF I I A B M+ A B Connection to the k-/- interface (Top view) R I I A B L k-/i- R OFF A A Input Input RS- A (input) RS- B (input) Termina I I Measuring current transformer k k k k k k k k k k k k Termina k k Measuring current transformer BS-Bus B A T M+ RS- B (output) RS- A (output) Ground dig. output Note: Set terminating resistor R to at the beginning and end of the BS bus chain ony! EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Connection measuring current transformer W, WR, WS series For insuation faut ocation, the measuring current transformers of the W (cosed), WR (rectanguar) and WS (spit-core) series are used. L, L, K, L, K L A A K K Connecting measuring current transformers of the W AB series to EDS-LAB To use the EDS-LAB with the maximum ocating current of. ma, the cosed measuring current transformers of the W AB series are required. For every measuring current transformers of the W AB series, one power suppy unit AN or AN is required. CT W...AB a b WXS... k: : - V: GND: + V: k + VGND - V A A A A A A +V GND -V k EDS-LAB- AN EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Wiring diagram to (N)AC system with iso Un L L L N PE to the oads to the oads A/+ A/- L/+ L L/- KE E A A A/+ A/- k EDS I L I I n L PGH CHANNELS TEST RESET ALARM I L ALARM I n SLAVE ADDRESS MUTE X X X BS-Bus Wiring diagram to DC system with iso Un L+ L- PE to the oads to the oads A/+ A/- L/+ L L/- KE E A A A/+ A/- k PGH IT-System O K > MΩ EDS CHANNELS I L I I n L TEST RESET R(an) kω/kω ALARM I L ALARM I n SLAVE ADDRESS MUTE X X X BS-Bus EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Wiring diagram to AC system with iso Un L L PE to the oads to the oads A/+ A/- L/+ L L/- KE E A A A/+ A/- k PGH IT-System O K > MΩ EDS CHANNELS I L I I nl TEST RESET R(an) kω/kω ALARM I L ALARM I n SLAVE ADDRESS MUTE X X X BS-Bus Connection exampe: iso, EDS-S and EDS-L Un L L L N PE to the oads to the oads to the oads to the oads A A L/- A/+ A/- PGH L/+ L IT-System O K > MΩ KE E BB-Bus ( EDS max.) EDS I L I n A A EDS CHANNELS I L I I nl TEST RESET EDS aus R(an) kω/kω ALARM I L ALARM I n SLAVE ADDRESS MUTE X BS-Bus EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Technica data Insuation coordination Rated insuation votage (IEC -) AC V Rated impuse votage (IEC -) kv Overvotage category III Poution degree Protective separation (reinforced insuation) between (A,A)-(,)-(,)-(X,X,X) Votage test acc. to IEC -. kv Suppy votage Suppy votage range AC/DC V Toerance of - +% Frequency range of ) ) DC, Hz Toerance of the frequency range of - + % Power consumption, typicay Hz ( Hz) EDS -L W/ VA ( W, VA) Power consumption, typicay (DC via BB-Bus) EDS -S W Response vaues Response vaue insuation faut ocation (I ΔL) EDS ma Response vaue insuation faut ocation (I ΔL) EDS. ma Reative uncertainty (I ΔL) EDS ± %, ± ma ) Reative uncertainty (I ΔL) EDS ± %, ±. ma ) Response vaue residua current measurement (I Δn) EDS ma A Response vaue residua current measurement (I Δn) EDS ma A Reative uncertainty (I Δn) EDSx ( Hz ± % Reative uncertainty (I Δn) EDSx ( Hz) - % Hysteresis % Time response Scanning time for a channes insuation faut ocation (I ΔL) profie-dependent, min. s Response time residua current measurement (I Δn) ms Response time for measuring current transformer monitoring max. min Measuring circuit Nomina system votage U n EDS refer to ocating current injector (e.g. ISOMETER iso-d-p) Nomina system votage U n EDS AC V, DC V Measuring current transformer externa for EDS type W, WR, WS Measuring current transformer externa for EDS type W /, WS / Measuring current transformer externa for EDSx-LAB type W AB Load EDS Ω Load EDS. Ω Rated insuation votage (measuring current transformer) V Connection EDS measuring current transformer Singe wire. mm² m Singe wire, twisted. mm² m Shieded cabe. mm² m Recommended cabe (shieded, shied connected to PE on one side) J-Y (St) Y min. x. Measuring ranges insuation faut ocation I ΔL Rated frequency range Measuring range insuation faut ocation (I ΔL) EDS Measuring range insuation faut ocation (I ΔL) EDS Max. residua current Measuring ranges residua current measurement I Δn Measuring range residua current measurement (I Δn) EDS Rated frequency range EDS Measuring range residua current measurement (I Δn) EDS Rated frequency range EDS DC,. Hz. ma. ma see diagrams in manua ma A Hz ma A Hz LEDs (operation LED) green yeow yeow I ΔL ALARM yeow I Δn ALARM yeow channe indication yeow Digita inputs Number Operating mode, adjustabe active high, active ow Function none, test, reset Votage eve Low DC - V, High DC V Digita current output Number Function none, I ΔL aarm, I Δn aarm, device faut, transformer faut, common aarm Current ma DC inactive, ma DC active Toerance ± % Burden resistance R Ω / P R, W Buzzer Number Function none, I ΔL aarm, I Δn aarm, device faut, transformer faut, insuation faut ocation active, common aarm Interfaces Interface/protoco RS-/BS Data rate baud/s Cabe ength m Cabe: twisted pair, one end of shied connected to PE recommended: J-Y (St) Y min. x. Connection X.A, X.B Terminating resistor Ω, can be connected internay Device address, BS bus Switching eements Number N/O contacts Operating mode N/C operation/n/o operation Function contact, none, I ΔL aarm, I Δn aarm, device faut, transformer faut, common aarm Function contact, none, I ΔL aarm, I Δn aarm, device faut, transformer faut, common aarm Eectrica endurance under rated operating conditions Rated operationa votage VAC Rated operationa current A Rated insuation votage kv Max. switching capacity W/ VA Max. switching capacity VDC/ VAC Environment/EMC EMC IEC -- Ambient temperatures: Operating temperature - + C Transport - + C Storage - + C Cassification of cimatic conditions acc. to IEC : Stationary use (IEC --) K (no condensation, no formation of ice) Transport (IEC --) K Long-term storage (IEC --) K Cassification of mechanica conditions acc. to IEC : Stationary use (IEC --) M Transport (IEC --) M Long-term storage (IEC --) M Range of use m above sea eve EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Technica data (continuation) Connection Connection type puggabe screw-type termina or push-wire termina Screw-type termina: Tightening torque.. Nm ( b-in) Conductor sizes AWG - Stripping ength mm rigid/fexibe.. mm² fexibe with ferrues, with/without pastic seeve.. mm² Mutipe conductor, rigid. mm² Mutipe conductor, fexibe.. mm² Mutipe conductor, fexibe with ferrue without pastic seeve. mm² Mutipe conductor, fexibe withtwin ferrue with pastic seeve.. mm² Push-wire terminas: Conductor sizes AWG - Stripping ength mm rigid/fexibe.. mm² fexibe with ferrues, with/without pastic seeve.. mm² Mutipe conductor, fexibe withtwin ferrue with pastic seeve.. mm² Push-wire terminas X, X: Conductor sizes AWG - Stripping ength mm rigid/fexibe.. mm² fexibe with ferrue without pastic seeve.. mm² fexibe with TWIN ferrue with pastic seeve.. mm² Other Operating mode continuous operation Mounting at an ambient temperature > C vertica mounting required at an ambient temperature < C mounting optiona Degree of protection interna components IP Degree of protection terminas IP DIN rai mounting acc. to IEC Screw fixing x M with mounting cip Encosure materia poycarbonate Fammabiity cass UL V- Dimensions (W x H x D) x x Documentation number D Weight approx. g (EDSx-S) approx. g (EDSx-L) Option W data different from the standard version Ambient temperatures: Operating temperature - + C Transport - + C Long-term storage - + C Cassification of cimatic conditions acc. to IEC : Stationary use (IEC --) K (condensation and formation of ice possibe) Cassification of mechanica conditions acc. to IEC : Stationary use (IEC --) M ) = at a frequency > Hz, of X and k-/- must be insuated. Ony permanenty instaed devices which at east have overvotage category CAT (V) may be connected. ) = ony / Hz are permitted for UL appications. ) = effect of a residua current > ma resuts in a greater reative uncertainty. Dimension diagram Dimensions in mm, mm, mm, mm mm EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Ordering information ) Suppy votage AC/DC Response vaue LED dispay Option W - + C, K, M Type ma EDS-S- B EDSW-S- BW EDS-L- B EDSW-L- BW V. ma EDS-S- B EDSW-S- BW EDS-L- B EDSW-L- BW EDS-LAB- B EDSW-LAB- BW ) Absoute vaues Suitabe system components Accessories Suppy votage Type AC/DC V ± % Suppied by USB interface -fod reay modue AC, V / Hz, DC ± V DC, V, DC ± V AC V, / Hz AC, DC V DI-PSM (RS- repeater) DI-USB (interface converter RS-/USB) with USB cabe IOM-S (input/output mudue) AN (power suppy unit for W AB current transformers) AN (power suppy unit for DI- or DI-) B B B B B B Snap-on mounting W / B Snap-on mounting W B Description Pug kit, screw terminas ) Pug kit, push-wire terminas Mechanica accessories (termina cover, mounting cips) ) BB bus TE Connector ) ) incuded in the scope of deivery ) incuded in the scope of deivery of EDSx-S- B B B B Measuring current transformer for EDS Design type circuar spit-core Interna diameter/mm Type W B W B W B W B W B x WSx B x WSx B x WSx B Aternative measuring current transformer from the Bender program Design type circuar rectanguar spit-core Interna diameter/mm Type W/ B W-S B W-S B W-S B W-S B W-S B W-S B x WR xs B x WR xs B x WR xs B x WR xs B x WS xs B x WS xs B x WS xs B x WS xs B For further information regarding the measuring current transformers, refer to the respective data sheets. EDSxx_D D_XXEN/.
Insuation faut ocators EDS/ Measuring current transformer for EDS Design type circuar spit-core Interna diameter/mm Type W- B W- B W- B x WSx- B x WSx- B Aternative measuring current transformer from the Bender program Measuring current transformer for EDS-LAB Design type circuar Interna diameter/mm Type WAB B WAB B WAB B WAB B WAB B Design type Interna diameter/mm Type W/ B circuar W-/ B circuar, -fod W/- B x WSx/ B spit-core x WSx/ B For further information regarding the measuring current transformers, refer to the respective data sheets. Characteristic curve for response sensitivity Network configuration, mains votage, mains frequency, eakage capacitance and test current infuence the responsiveness of the EDS system. The resuting insuation resistance response vaue Ran is determined step by step using the formuas and diagrams.. Evauation of system types AC, AC or DC AC or AC system: U n =. U n DC system: U n =. U n. Cacuate the standardised response vaue R an(c e = μf) with an assumed eakage capacitance of C e = μf and the EDS response vaue I an = ma: R an(c e = μf) = U n/i an. Extract correction factor K from the diagram by forming the product with evauated U n and rea eakage capacitance C e.. Cacuate rea response vaue: R an = K x R an (C e = μf) Exampe for a system with AC V: to ) = V to ) at ma =. kω to ) at μf =. to ) = kω,,,,,,,,,,, Ce xun [µfv] EDSxx_D D_XXEN/.
Faut curve EDS /EDS An insuation faut ocation beyond the grey area causes an error message. The EDS -L indicates error messages via fashing LEDs. Use an EDS -S, then the faut messages are indicated via the ISOMETER. Residua current [A] FAULT CURVE -EDS, Residua current [A] FAULT CURVE-EDS, Insua ons faut oca on is not possibe Permissibe range Insua ons faut oca on is possibe Bender GmbH & Co. KG P.O. Box Gruenberg Germany Londorfer Straße Gruenberg Germany Te.: + - Fax: + - E-Mai: info@bender.de www.bender.de FAULT CURVE Frequency [Hz], Insua ons faut oca on is not possibe Permissibe range Insua ons faut oca on is possibe FAULT CURVE Frequency [Hz] BENDER Group EDSxx_D D_XXEN /. / pdf / Bender GmbH & Co. KG, Germany Subject to change! The specified standards take into account the edition vaid unti. uness otherwise indicated.