Protection and control. Sepam range Sepam 2000 Generator

Transcription

1 Protection and control Sepam range Sepam 000

2 Presentation Contents page presentation selection table metering protection control and monitoring functional and connection schemes other connection schemes examples of connections communication characteristics installation ordering information protection and control consists of performing the metering, protection, control and monitoring functions required for operation. Sepam 000 provides all these functions globally. All the equipment and mechanisms that are generally found in a MV cubicle control cabinet are replaced by a single device which performs: c protection, c metering, c control and monitoring using protection functions and logic inputs to activate the trip outputs, closing outputs, etc. and annunciation. Sepam 000 compact S. Sepam 000 standard S. Advantages c Indication of phase and earth fault current values at the time of breaking provides the operator with useful assistance in determining the causes and seriousness of the fault, c The high level of electromagnetic compatibility (EMC) makes it possible to use advanced digital technology functions in electrical substations, without the need for any particular precautions, c Sepam 000's continuous self-testing sets the device in a predetermined fail-safe position whenever a failure occurs, thereby preventing random operation, c Terminals that are individually disconnectable while energized allow easy maintenance, c The optional communication functions can be used for remote setting, remote metering, remote annunciation and remote control via a two-wire link with a supervisor for centralized management. c Setting and testing are extremely simple: v the settings may be made on the front panel (serial link): - one by one, using the TSM00 pocket terminal, or the SFT0 PC software program, - all at once using the SFT PC software program (downloading), v a direct readout is given for primary current and voltage and for the metering function, simple testing by injection guarantees the coherency of all settings. c Each Sepam 000 is design to meet all the application needs and includes all the necessary functions ready for use (protection functions, metering, control logic and communication). This control logic may be adapted to most usuals schemes by a simple parametring. This allows a better safety and optimization of wiring. Installation in the switchboard is simplified: c just one device to install, the Sepam 000. It comes in two models with different widths: v S (standard), v S (compact for certain types), c cabling is limited to: v standard A or A current transformers, v voltage transformers, v temperature sensors v control and annunciation units (start/stop pushbutton, device position, etc), v actuators (trip and closing coils). Customization () Standard control and monitoring carried out in Sepam 000's internal PLC can be customized. The number of inputs and outputs can be increased by adding extension boards (please contact us for further information). () Please refer to document Sepam 000 customized application.

3 Selection table Sepam 000 generators functions ANSI Sepam types () () generatorcode transfomer unit G0 G0 G0 G0 G0 G0 G0 G0 G G G00 G G G G protections phase overcurrent 0/ /* /* thermal overload voltage restrained overcurrent 0V/V negative sequence/ unbalance earth fault 0N/N (G) neutral 0G/G undervoltage () *** *** *** *** overvoltage () neutral voltage displacement () N/ directional overcurrent directional earth fault N reverse real power P field loss (reverse reactive power) Q/0 underfrequency () L overfrequency () H temperature set points (RTDs /) /T / / restricted earth fault REF biased differential G synchronism check metering phase currents (I, I, I) c c c c c c c c c/c* c/c* c c/c* c/c* peak demands phase currents (I, I, I) c c c c c c c c c c c c c voltages (U, U, U, V, V, V) c c c/c** c/c** c c c c c c c c c real / reactive power (P,Q) c c c c c c c c c c c c c peak demand real/ reactive power c c c c c c c c c c c c c power factor c c c c c c c c c c c c c frequency c c c c c c c c c c c c c thermal capacity used c c c c c c c c c c c c accumulated real/ reactive energy (±Wh, ±VArh) c c c c c c c c c c c c c tripping currents (I, I, I, Io) c c c c c c c c c c c c c true rms current c c c c c c c c c c c c c temperature c c c c c c disturbance recording c c c c c c c c c c c c c residual current c c c c c c c c c c c c/c* c/c* residual voltage c c c c c c c c c c c c c cumulative breaking current and number of breaks c c c c c c c c c c c c differential and through currents c c control and monitoring open/ close c c c c c c c c c c c c lockout relay c c c c c c c c c c c c c inhibit closing c c c c c c c c c c c c annunciation 0 c c c c c c c c c c c c c logic discrimination c c c c c c c c c c c c c trip circuit supervision c c c c c c c c c c c c Buchholz, thermal, DGPT, PTC c c c generator shutdown logic c c c c c c c c c c c c de-energizing logic c c c c c c c c c c c c detection of plugged connectors () c c c c c c c c c c c c c operation counter c c c c c c c c c c c c running hours counter c c c c c c c c c c c c phase fault trip counter c c c c c c c c c c c c disturbance recording triggering c c c c c c c c c c c c c VT monitoring c c Sepam models standard S XR SR/ TR TS XR SR/ XR SR LR LS LR LS SS SS compact S LT LT number of standard ESTOR boards The figures in the columns represent the number of similar protection devices. For example, for phase overcurrent protection, "" means separate overcurrent protection devices. () these functions can be performed by Sepam B0 type. () for differential protection use Sepam 00 LD. () the generator protection can t be connected to CSP sensors. (*) function available with sets of sensors. (**) phase-to-neutral voltage measurement available with second set of sensors only with a single T. (***) U and U only.

4 Metering Sepam 000 is an accurate metering device. It gives a direct readout of values, together with the related units, A, V, W... All the values needed for operation and used for commissioning are available locally and in the control room. Measurements needed for operation Currents Measurement of the current for each of the phases of the circuit. Peak demand currents Measurement of the greatest average current value on the phases. The average current measurement is computed periodically (adjustable period:, 0,, 0 or 0 minutes). The clear button is pressed for zero reset. Voltages Measurement of the circuit phase-to-phase and phase-to-neutral voltages. Real / reactive power Measurement of the real and reactive power, with the sign, in balanced and unbalanced -phase networks. Peak demand real / reactive power Measurement of the greatest average real power (and reactive power) value, used to find the power absorbed during peak load periods. The average value is computed periodically (adjustable period:, 0,, 0 or 0 minutes). The clear button is pressed for zero reset. Measurements accessed on the front panel of Sepam 000 (serial link and/or display) and via the communication system. Power factor (p.f.) Measurement of the power factor, with the sign and type (capacitive or inductive), of the power absorbed. Frequency Measurement of frequency (based on positive sequence voltage or the U voltage input). Thermal capacity used Measurement of the relative thermal capacity used (with respect to the nominal thermal capacity) on account of the load. Accumulated real / reactive energy The alphanumerical display unit shows the accumulated real / reactive energy values: c real energy consumed, c reverse real energy, c reactive energy consumed, c reverse reactive energy. These values are saved in the event of a power failure. Tripping currents Measurements of the phase currents and the residual current that were stored at the time that Sepam 000 gave the tripping order. Used to find the fault current (fault analysis) and assess the level of wear of the breaker (maintenance assistance). The "clear" button is pressed for zero reset. True rms current Measurement of the rms value of phase current up to In, taking into account: c fundamental, c harmonics up to rank. Temperature Temperature measurement in C for each RTD. Disturbance recording Recording of electrical signals and logical information before and after a fault recorder triggering order is given.

5 Measurements used for commissioning and maintenance Residual current / residual voltage Used to check the current and voltage sensor connections by giving the measurement of: c the residual current used for the earth fault protection function, c the residual voltage used for the directional earth fault protection function. Cumulative breaking current and number of breaks Used for breaking device maintenance. Characteristics functions ranges accuracy () ammeter () 0 to In ±0.% peak demand current () 0 to In ±0.% voltmeter () 0 to. Un ±0.% wattmeter () 0 to MW ±% varmeter () 0 to MVAr ±% peak demand real power () 0 to MW ±% peak demand reactive power () 0 to MVAr ±% power factor () () - to frequency meter () to Hz ±0.0 Hz accumulated real energy () 0 to 0.0 MWh ±% accumulated reactive energy () 0 to 0.0 MVArh ±% tripping currents () phase: 0 to In ±% earth: 0 to 0 Ino ±% true rms current () 0 to In ±% up to rank disturbance recording () record periods samples duration per period time before to periods triggering event thermal capacity used () 0 to % ±% temperature () -0 to 0 C ± C residual current () 0 to 0 Ino ±% residual voltage () 0 to. Un ±% cumulative breaking current () 0 to (ka) +0% number of breaks () 0 to () measurement accessed on the front panel of Sepam 000 (display and serial link) and via the communication system. () measurement accessed on the front panel of Sepam 000 (serial link). () capacitive or inductive () typical accuracy with nominal values according to IEC 0-. () transfer of records to the front panel of Sepam 000 using the SFT0 software program and via Jbus/Modbus communication. () measurement accessed on front panel of Sepam 000 (serial link) and via the communication system. Reminder: Rated current In, basis current Ib, rated voltage Un and current Ino are general parameters that are set at the time of Sepam 000 commissioning. In is the current sensor rated current (CT rating). Ib is the current which corresponds to the motor power rating, adjustable from 0. to. In. Ino is the core balance CT current rating. Un is the phase-to-phase voltage of the voltage sensor primary windings. Example of the processing of a disturbance recording record using the SFT PC software program.

6 Protection Phase overcurrent (ANSI 0/) F0 to F0* Three-phase equipment protection against phase-tophase (short-circuit) faults. The following types of time delay settings are available definite, standard inverse, very inverse, extremely inverse or ultra inverse. Thermal overload (ANSI ) F* Protection of generator against thermal damage caused by overloads. Thermal overload is calculated according to a mathematical model, with time constants (T and T), taking into account harmonics up to rank st and the effect of negative sequence current by means of an adjustable weighting coefficient. The function comprises: c an adjustable alarm setting, c an adjustable trip setting. Voltage restrained overcurrent (ANSI 0V/V) F* Three-phase protection against alternator phase faults. Its characteristics are suitable for the weak current supplied by the alternator when a short-circuit occurs. Negative sequence / unbalance (ANSI ) F* Protection of equipment against overheating caused by an unbalanced power supply, phase inversion or phase break, and against low levels of overcurrent between phases. Recommendation: c use IDMT curves. Earth fault (neutral) (ANSI N or G) F0 to F0, F0, F0, F0, F0* The following types of time delay settings are available: definite, standard inverse, very inverse, extremely inverse or ultra inverse. Residual current detection can be provided by: c the three phase current transformers, in which case a harmonic restraint is used to do away with transformer closing related tripping. c a current transformer (or A), combined with a CSH0 interposing ring CT, c a CSH0 or CSH00 core balance CT, according to the required diameter, this method being the most accurate one. The two ratings available ( and 0A), provide a very wide setting range. c a different core balance CT, associated with the ACE 0 interface. Undervoltage (ANSI ) F, F, F, F, F, F* Protection used either for automated functions (changeover, load shedding) or for the protection of several motors against undervoltage. This function checks for undervoltage in each of the system voltages measured. Overvoltage (ANSI ) F0, F0* Protection against abnormally high voltage and checking that there is sufficient voltage for power supply changeover. This protection monitors system voltage U Neutral voltage displacement (ANSI N/) F* Detection of insulation faults in ungrounded systems by measurement of neutral voltage displacement. Directional overcurrent (ANSI ) F* Incomer protection, which provides quick, selective protection against upstream faults when there are several parallel power supply sources in the network. Directional earth fault (ANSI N) F0* This protection provides quick, selective detection of earth faults at the generator end when there are several incomers in parallel, each of which has an earthing system. Reverse real power (ANSI P) F* Protection against the transferring of power between sources, e.g. to prevent an autonomous means of energy generation from ouputting into the normal energy distributor power supply source.it is based on the "real overpower" F* function. Field loss (reverse reactive power) (ANSI Q/0) F* Protection of a synchronous machine against de-energizing which causes excessive consumption of reactive power. Underfrequency(ANSI L) F* Detection of variances with respect to the rated frequency, in order to maintain high quality power supply. This protection can be used for overall tripping or for load shedding. Overfrequency (ANSI H) F* Protection against abnormally high frequency. Temperature monitoring (RTDs) (ANSI /T) F... F, F... F* Protection which detects abnormal overheating of generators (bearings and/or windings) equiped with Pt 00 type platinum resistive temperature devices: c alarm setting, c trip setting. The RTD cabling is continuously monitored. Restricted earth fault (ANSI REF) F* Protection against phase-to-earth faults in three-phase windings with earthed neutral. Biased differential (ANSI G) F* Fast, sensitive motor protection against internal faults due to damaged insulation. The protection is based on the principle of percentage differentials. It includes starting current restraint to sustain stability in spite of its high level of sensibility. Synchro-check (ANSI ) F* Authorizes the closing of the breaking device, only if the two circuits have voltage, frequency and phase gaps within the planned limits. The choice of an operating mode with voltage absent allows the generator to be coupled with a de-energized installation. *Fxxx function identification used for protection setting using the TSM 00 pocket terminal. Current sensor sizing The current sensors used should be such that they will not be saturated by the current values which they are required to measure, with accuracy (at least In): c for definite time functions (DT):. times the setting current, c for IDMT functions (SIT, VIT, EIT and UIT):. times the greatest working value in the curve. Practical solution when setting information is lacking secondary CT power and resistance resistance current In accuracy class () CT secondary R CT wiring R W A. VA P 0 < Ω 0.0 Ω A. VA P 0 < 0. Ω 0.0 Ω () determination in accordance with class X allows the sensor current to be optimized with R CT secondary winding resistance, R W wiring resistance. c For restricted earth protection: The current transformers must be of the P0 type. The power rating must be chosen so that the wiring resistance (R w ) is less than the rated load of the current transformer (VA CT ), i.e.: VA CT > R w.in.

7 Setting ranges functions Fxxx () setting time delays phase overcurrent F0-F0-F0-F0 definite time DT 0. to In t: 0.0 to s IDMT () 0. to. In t: 0. to. s at 0 Is thermal overload F negative sequence/unbalance coefficient: 0;.;.; time constants: heating T: to 0 mn cooling T: to 00 mn warm state: 0% to 00% of nominal thermal capacity used tripping: 0% to 00% of nominal thermal capacity used voltage restrained overcurrent F definite time DT 0. to In t: 0.0 to s IDMT () 0. to. In t: 0. to. s at 0 Is negative sequence / unbalance F definite time 0. to Ib t: 0. to s IDMT 0. to 0. Ib t: 0. to s at Ib earth fault F0-F0-F0-F0 type of sensor F0-F0-F0-F0 definite time DT 0.0 to 0 In sum of phase currents t : 0,0 to s 0. to 0 A CSH core bal. CT, A. to 00 A CSH core bal. CT, 0 A 0.0 to 0 Ino A or A CT () 0.0 to 0 Ino core balance CT () IDMT () 0.0 to In sum of phase currents t: 0. to. s at 0 Iso 0. to A CSH core bal. CT, A. to 0 A CSH core bal. CT, 0 A 0.0 to Ino A or A CT () 0.0 to Ino core balance CT () harmonic restraint taken yes into account no undervoltage F-F-F-F-F-F % to 00% of Un t: 0.0 to s overvoltage F0-F0 0% to 0% of Un t: 0.0 to s neutral voltage displacement F % to 0% of Un if VT: Un/ /00/ t: 0.0 to s % to 0% of Un if VT: Un/ /00/ underfrequency F Hz to 0 Hz ( to 0 Hz) t: 0. to s overfrequency F 0Hz to Hz (0 to Hz) t: 0. to s directional earth fault F characteristic angle 0,, 0 definite time DT 0. to In t: 0.0 to s IDMT () 0. to. In t: 0. to. s at 0 Is directional earth fault F0 characteristic angle 0,, 0,, 0, 0 et - definite time DT 0.0 to 0 In sum of phase currents t: 0.0 to s 0. to 0 A CSH core bal. CT, A. to 00 A CSH core bal. CT, 0 A 0.0 to 0 Ino A or A CT () 0.0 to 0 Ino core balance CT () () function identification for protection setting. () IDMT curves: - inverse: SIT, - very inverse: VIT, - extremely inverse: EIT, - ultra inverse: UIT, - long time inverse: LTI. () with CSH 0 interposing ring CT. () core balance CT with ratio /n (0 i n i 00) with ACE 0 interface.

8 Protection (cont d) Setting ranges (cont d) functions Fxxx () setting time delays reverse real power F % to 0% of Sn (Sn = Un x In) t: 0. to s reactive reverse power F % to 0% of Sn (Sn = Un x In) t: 0. to s temperature monitoring (RTDs) F to F, F to F 0 C to 0 C restricted earth fault F-F 0.0 to 0. In if In u 0 A 0. to 0. In if In < 0 A biased differential F to 0 % with min. A synchro-check F voltage gap to 0% Un frequency gap 0.00 to 0. Hz phase gap to 0 degrees voltage present 0. to. Un voltage absent 0. to 0. Un Usync absent, Usync present mode Usync absent, Usync present mode (Usync absent, Usync present) mode or (Usync absent, Usync present) (Usync absent, Usync present) mode or (Usync absent, Usync present) or (Usync and Usync absent) anticipation ta: 0 to 0. s Reminder: rated current In, basis current Ib, rated voltage Un and current Ino are general parameters that are set at the time of Sepam 000 commissioning. In is the current sensor rated current (CT rating). Ib is the current which corresponds to the rated power of the generator. Un is the phase-to-phase voltage of the voltage sensor primary windings. Ino is the core balance CT current rating. Rated thermal a capacity use : corresponds to a steady current egal to Ib. () function identification for protection setting.

9 Control and monitoring Open / close control Used to control breaking devices equiped with different types of opening and closing coils: c circuit breaker with shunt-trip or undervoltage release coil, c latching contactor with shunt-trip coil, c contactor with impulse control. Parameter setting via the TSM 00 pocket terminal, or PC softwares (SFT 0 or SFT ), allows the logic to be adapted to suit the equipment being used (by default, the logic is adapted for control of a circuit breaker with a shunt-trip coil). The opening order (via input I) differs according to the programmed type of control: c normally open contact for shunt trip coil (circuit breaker or contactor with latched order control), c normally closed contact for undervoltage release coil (circuit breaker and contactor with impulse control). Lockout relay (ANSI ) Stores tripping orders (lockout) and requires user action to be put back into operation (reset). Inhibit closing (ANSI ) Inhibits the closing of the circuit breaker or the contactor according to operating conditions. Annunciation (ANSI 0) Keeps the user informed by the display of messages. Thermostat, Buchholz, DGPT, sondes PTC Traitement des défauts détectés avec les dispositifs intégrés dans l équipement : alarme, déclenchement et signalisation (utilisation avec les groupes-blocs). Logic discrimination (ANSI ) Enables quick, selective tripping of the phase overcurrent and earth fault protection relays, whether definite time (DT) or IDMT (standard inverse SIT, very inverse VIT, extremely inverse EIT or ultra inverse UIT). The function triggers the transmission of a "blocking input" signal whenever one of the protection settings is exceeded. Blocking input signal transmission can be used by the Sepam 000 Logic discrimination function for substation, generator, transformer and busbar connection applications. Trip circuit supervision and discrepancy (ANSI ) Detects tripping (by shunt-trip coil) circuit faults. Can be used when the Sepam 000 and the tripping auxiliary power sources have the same voltage rating. If the equipment contains an undervoltage release coil only, the tripping circuit is not supervised since it is fail-safe. This function can also detect position information discrepancies (neither open nor closed or simultaneously open and closed) in the different control schemes. The connection of inputs I, I and trip output O on the ESB board must be done according to other connection schemes. Group stop Orders the shutdown of the drive when internal faults occur. De-excitation Orders the de-excitation and stopping of the group. The stopping is initiated by internal fault or external trip order. De-excitation is initiated by internal fault detection, external de-excitation order. Detection of plugged connectors (ANSI ) Indication on the display unit that one or more connectors are not plugged in (the terminals must be connected: see connection schemes). Operation counter () Counts the number of closing operations made by the breaking device, thereby facilitating equipment maintenance. Running hours counter () Determines the time during which the breaking device (contactor or circuit breaker) is in the in service-closed position, i.e. the number of hours of operation (0 to hours). Phase fault trip counter () Counts the number of operations for which breaking performances were required, thereby facilitating equipment maintenance. Disturbance recording triggering Triggers recording of electrical signals and logical states by: c voluntary local or remote action, c instantaneous overcurrent, earth fault and directional protections, c protection tripping order. VT monitoring Indicates the absence of the voltage needed for synchro-check following the opening of the LV circuit breaker or the melting of striker fuses or the disconnection of the VTs. () counters reading is via serial link on the front panel of Sepam 000, and via Jbus/Modbus communication. Load shedding request Allows the closing of an output contact following the detection of undervoltage or underfrequency caused by a generator overload. This data may be used by the Sepam motor load shedding function.

10 Control and monitoring (cont d) Operation of all Sepam 000 types (except for G00) functions commands outputs annunciation trip inhibit lock alarm fault device messages () closing out trip fault O O O O O O O O O phase overcurrent c c c c () c () c OVERCURRENT thermal c c c c THERMAL overload (trip) thermal overload c THERMAL (alarm) voltage restrained c c c c () c () c O/C V REST overcurrent negative sequence/ c c c c UNBALANCE unbalance neutral c c c c () c () c EARTH FAULT earth fault c c c c () c () c E/F directional overcurrent c c c c () c () c DIR. O/C directional earth fault c c c c () c () c DIR. E/F restricted earth fault c c c c c c REF biased differential c c c c c c GENE DIFF undervoltage () c () () c () () c () () c () c () () UNDERVOLT. X overvoltage () c () c () c () c () c c () OVERVOLT. X neutral voltage c () c () c () c c () c () N VOLT DISP displacement underfrequency () c () () c () () c () c ) () UNDERFREQ. overfrequency c () () c () () c () c () () OVERFREQ. reverse real power c () c () c () c () c () REVERSE P field loss c () c () c () c () c () FIELD LOSS (reverse reactive power) temperature alarm c c RTD x (RTD) temperature c c c c RTD x tripping (RTD) RTD fault c RTD FAULT transformer alarm c c c TRANSFO transformer tripping c c c c TRANSFO PTC sensor aux. voltage c PTC FAULT external protection c c c c EXT. TRIP trip group stop c c c c c EXT. STOP de-excitation c c c c DE-EXCIT. pole pressure c c c PRESSURE synchro-check () c ()() ANGLE GAP () FREQ. GAP () VOLTAGE GAP () STOP SYNC. () VT monitoring () c c U. SYNC FAIL U. SYNC FAIL trip circuit c c c? CONTROL? supervision detection of plugged connectors () () on Sepam 000 display unit (according to language version). () depending on set up. () if breaker open. () if breaker closed. () for types of Sepam equiped with these functions. () appear after a synchronized closing request that has failed. () only to deactivate, according to set-up, reverse real and reactive power protection in medium-size generator-transformer unit applications. xx number of the RTD (from to according to the type of Sepam). CONNECTOR 0

11 Set up of all Sepam 000 types (except for G00) functions parameters open / close control KP KP circuit breaker with shunt-trip coil 0 0 circuit breaker with undervoltage release coil 0 latching contactor with tripping by shunt-trip coil 0 contactor with impulse control external protection input logic "external protection trip" (I) by NO contact KP = 0 by NC contact KP = counters reset to zero of operation counter KP = reset to zero of phase fault trip counter KP0 = reset to zero of running hours counter KP = other tripping by undervoltage threshold KP = by undervoltage threshold KP = by overvoltage threshold KP = by overvoltage threshold KP = by neutral voltage displacement KP = by underfrequency KP0 = by overfrequency KP = latching undervoltage threshold KP = undervoltage threshold KP = overvoltage threshold KP = overvoltage threshold KP = field loss by overvoltage threshold KP = by overvoltage threshold KP = group stop by reverse real power KP = display of set up control scheme KP = BI (Blocking Input) pilot wire test KP = remote setting remote setting enable KP = 0 disable KP = disturbance recording inhibition KP0 = automatic triggering KP = manual triggering KP = synchro-check (Sepam 000 G0 and G0 types) synchro-check with KP = 0 without KP = operating mode with voltage acknowledgment KP = no acknowledgment KP = 0 transformeur monitoring (Sepam 000 G and G types) transformers sensors by NO contact KP = 0 by NC contact KP = use of Sepam 000 G0, G0 and G types with G00 (generators-transformer units) desactivation of reverse real and reactive power KP =

12 Control and monitoring (cont d) Operation of Sepam 000 type G00 functions commands outputs lock out transmit messages () BI O O O O O O O O 0 0 phase overcurrent c c OVER CURRENT directional overcurrent c c c DIR. O/C neutral c c EARTH FAULT directional earth fault c c c DIR E/F restricted earth fault c c REF undervoltage c () c UNDERVOLT.x overvoltage c () c c () c () OVERVOLT.x underfrequency c () c () c () UNDERFREQ. overfrequency c c OVERFREQ. neutral voltage displacement c c N VOLT DISP reverse real power c c REVERSE P. field loss c c FIELD LOSS (reverse reactive power) Buchholz alarm c c () BUCHHOLZ Buchholz tripping c c () BUCHHOLZ thermostat alarm c c () TR. TEMP PTC alarm thermostat tripping c c () TR. TEMP PTC tripping gas detector c c () TR. GAS alarm (KP = ) gas detector c c () TR. GAS trippingt (KP = 0) pressure detector c c () TRPRESSURE PTC sensor auxiliary c () RTD FAULT voltage detection of pluged CONNECTOR connectors () () according to set-up (protection latching). () according to set-up (assignment of outputs: according to G00-A or new assignment).

13 Set up of Sepam 000 type G00 functions Buchholz / thermostat / DGPT logic inputs paramètres transformer sensors by NO contact KP = 0 by NC contact KP = input I, detection of gas or drop in level tripping KP = 0 latching alarm KP = underfrequency KP0 = undervoltage, setting KP = undervoltage, setting KP = overvoltage, setting KP = overvoltage, setting KP = assignment of inputs / outputs outputs 0 to 0 without transformer failures O undervoltage KP = 0 O overfrequency O underfrequency O overvoltage outputs 0 to 0 with transformer failures O undervoltage OR underfrequency KP = O overvoltage OR overfrequency O Buchholz / thermostat / DGPT with alarm O Buchholz / thermostat / DGPT with tripping input I : remote control enable enable if I = KP = (acknowledgment, remote setting) enable regardless of position of I KP = 0 remote setting remote setting enable KP = 0 remote setting desable KP = disturbance recording inhibition KP0 = automatic triggering KP = manual triggering KP = The parameters are set using the TSM 00 pocket terminal or the SFT 0 or SFT PC software program. The KP0 to KP parameters are of the impulse type.

14 Functional and connection schemes G0, G0 and G types L L L () A A U/Vo N 0V V P Q 0 CE0 B A A () G Pt00 n n n n n n 0 0 A SONDE T G0 G ESB CDG O O l l A 0 0 ().A.A terminal number for compact (S) Sepam 000 terminal number for standard (S) Sepam 000 * B A ECM 0 A A 0 0G G () A ESTOR A ESTOR A () A CSH * This scheme does not allow CSP sensors to be used. A SONDE T G N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog c Correspondence between primary and secondary connection (i.e.: P, S). Standard SXR or compact SLT (G0) or SSR (G0) or SSS (G) Sepam 000.

15 Functional and connection schemes (cont d) G0 and G0 types L L L Usync A U/Vo CE0 B A ESB A 0 G Usync A U/Vo N P Q 0 CDG O O l l 0 * B ECM 0V 0 V 0G G ESTOR A * This scheme does not allow CSP sensors to be used. N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog. () the busbar VT (U.SYNC) and the generator VT (U.SYNC) are connected to the same phase. CSH A 0 A A A SONDE T G0 ESTOR A c Correspondence between primary and secondary connection (e.g.: P, S). Standard STR (G0) or S TS(G0) Sepam 000.

16 Functional and connection schemes (cont d) G0, G0, G0, G0 and G types L L L A U/Vo N H L 0V V P Q 0 N G0 G0 CE0 B A ESB A 0 G * Pt00 n 0 B A A ECM 0 A A SONDE 0 0G G REF T G0 G CDG O O l l 0 n ESTOR A n 0 n n * This scheme does not allow CSP sensors to be used. n ESTOR A N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog. CSH A SONDE T G c Correspondence between primary and secondary connection (i.e.: P, S). Standard SXR (G0) or SSR (G0) or SSS (G) Sepam 000.

17 G and G types L L L * A U/Vo N H L 0V V P Q 0 CE0 B A G * B A B ECM 0 A A ECM 0G G 0 G ESB CDG O O l l A 0 0 A Pt00 n 0 A SONDE T G ESTOR A n CSH n 0 * This scheme does not allow CSP sensors to be used. N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog. () the busbar VT (U.SYNC) and the generator VT (U.SYNC) are connected to the same phase. n n n ESTOR A c Correspondence between primary and secondary connection (i.e.: P, S). Standard SLR (G) or SLS (G) Sepam 000.

18 Functional and connection schemes (cont d) G and G types Protection of small generator-transformer units L L L * B ECM 0 0N N CE0 B A A G * A B U/Vo ECM N H L 0 0G G 0V V P Q 0 ESB CDG O O l l A 0 0 A 0 A A ESTOR A Pt00 n 0 A SONDE T G * This scheme does not allow CSP sensors to be used. N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog. () the busbar VT (U.SYNC) and the generator VT (U.SYNC) are connected to the same phase. c Correspondence between primary and secondary connection (i.e.: P, S). CSH n n n n 0 ESTOR A n Standard SLR (G) or SLS (G) Sepam 000.

19 G00 type To be combined with G0, G0 or G types to protect medium-size generator-transformer units. L L L A U/Vo N H L N P Q 0 CE0 B A B A ECM 0 A A 0 0G G REF ESB CDG O O l l A 0 0 ESTOR A G ESTOR A N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog. c Correspondence between primary and secondary connection (i.e.: P, S). Compact SLT Sepam 000.

20 Functional and connection schemes (cont d) Sepam 000 combination of G00 and G0 types or G0 or G type L L L Protection of medium generator-transformer units A U/Vo N H L N P Q 0 G00 * B ECM 0 0G G REF A 0 A A ().A.A terminal number for compact (S) Sepam 000 terminal number for standard (S) Sepam 000 G () A A U/Vo N P** Q** V G0 G0 G * This scheme does not allow CSP sensors to be used. ** protections inhibited by set-up N.B. Refer to the "other connection schemes" section regarding other arrangements. : detection of plugged connectors. CDG: watchdog. c Correspondence between primary and secondary connection (i.e.: P, S). * B A ECM 0 A A 0 0G G CSH CE0, ESB and ESTOR boards not shown. 0

21 Other connection schemes Phase voltage L L L L L L A U/Vo A U/Vo Connection of a voltage transformer (does not allow implementation of the neutral voltage displacement and directional earth fault protection functions and residual voltage measurement). V-connection of voltage transformers (does not allow implementation of the neutral voltage displacement and directional earth fault protection functions and residual voltage measurement). Phase and residual voltage L L L A U/Vo Broken delta connection of voltage transformers for residual voltage measurement. c Correspondence between primary and secondary connection (i.e.: P, S).

22 Other connection schemes (cont d) Residual current with CT A or A L L L CSH0 B A ECM 0 A A CT + CSH 0 CSH0 P S P S turns For connection of A transformers make turns at the CSH 0 primary A ECM 0 A A CT + CSH0 with sensors other than CSH 0 or CSH 00 L L L /n 0 n 00 * ACE 0 * A ECM (*) The core balance CT-ACE 0 and ACE 0-Sepam 000 connections depend on the transformer ratio of the core balance CT and the current to be measured. Phase current L L L CCA 0 cable L L L L L L ECA A Connection of special-purpose CSP sensors according to type of Sepam 000. c Correspondence between primary and secondary connection (i.e.: P, S).

23 Examples of connections Logic input and output boards for all types (except for G00) ESB board ESB CDG O O l l A 0 0 open closing coil tripping coil ESB A 0 CDG O 0 O l l open closing coil tripping coil ESB CDG O O l l A 0 0 open contactor coil Circuit breaker or latching contactor tripping by a shunt-trip coil. Circuit breaker tripping by an undervoltage release coil. Tripping by undervoltage release coil of a contactor with impulse control. G00 type ESB board ESB A CDG O O l l 0 0 terminals data connected to ESB board watchdog O directional earth fault OR neutral 0 OR restricted earth fault O directional overcurrent OR phase overcurrent l not used l not used N.B. The inputs are potential-free and require an external power supply source.

24 Examples of connections (cont d) Logic input and output boards for G0, G0 and G types ESTOR board terminals data connected to ESTOR board ESTOR A 0 I remote control enable: enables closing and acknowledgment control via the serial link: contact closed for "enable" l l l l l l O or or () () I "drawn out" position: contact closed for "drawn out" I pole pressure: contact closed for "breaking pole fault" I external protection tripping: normally closed or normally open contact according to set up I close: NO contact I open: NO contact for shunt trip coil NC contact for undervoltage release coil () common O O O l l 0 O de-excitation 0 O device fault (pressure fault or control fault) O fault tripping O alarm: thermal overload, PTC sensor I receive "blocking input" (BI) I earthing switch: contact open for earthing switch open ESTOR board terminals data connected to ESTOR board I not used ESTOR l l l l l l O O O O A 0 0 I not used I not used I external control de-energizing N/O contact I coupling enabled (contact closed for enable) () I external control generator shutdown common O group stop 0 O not used O not used O not used I emergency stop (contact closed in normal operation) l l I reserved for external communication synchro. () If control by input I is not used: - for a shunt trip coil, I = 0 permanently, - for an undervoltage release coil, I = permanently. () parameterizable. N.B. The inputs are potential-free and require an external power supply source.

25 Logic input and output boards for G0 to G0, G, G, G, G and G types ESTOR board terminals data connected to ESTOR board ESTOR A 0 I remote control enable: enables closing and acknowledgment control via the serial link: contact closed for "enable" l l l l l l O or or () () I "drawn out" position: contact closed for "drawn out" I pole pressure: contact closed for "breaking pole fault" I external protection tripping: normally closed or normally open contact according to set up I close: NO contact I open: NO contact for shunt trip coil NC contact for undervoltage release coil () common O O O l l 0 O de-excitation 0 O device fault (pressure fault or control fault) O fault tripping O alarm: thermal overload, PTC sensor I receive "blocking input" (BI) I earthing switch: contact open for earthing switch open ESTOR board terminals data connected to ESTOR board ESTOR l l l l l l O O O O l l A 0 0 () I checking of PTC sensor box auxiliary voltage () I VT circuit closed (contact closed) () transformer sensors: tripping () I Busbar VT circuit closed (contact closed) () transformer sensors : alarm () I external control de-energizing N/O contact I coupling enabled (contact closed for enable) I external control generator shutdown common O group stop 0 O neutral voltage displacement O overvoltage, overfrequency O undervoltage, underfrequency I primary stop (contact closed in normal operation) I reserved for external communication synchro () G and G types only (NO or NC contact according to set-up). () G0 and G0 types only. N.B. The inputs are potential-free and require an external power supply source.

26 Examples of connections (cont d) Logic input and output boards for Sepam 000 G00 type ESTOR board ESTOR l l l l l l O O O O l l A 0 0 terminals data connected to ESTOR board I remote control enable I not used I not used I not used I not used I not used common O receive "blocking input" (BI) 0 O neutral voltage displacement O field loss (reverse reactive power) O real reverse power I receive BI (blocking input) I not used ESTOR board ESTOR l l l l l l O O O O l l A 0 0 terminals data connected to ESTOR board I Buchholz tripping I Buchholz alarm I thermostat tripping I thermostat alarm I DGP, pressure I DGP : gas, level common O () overvoltage (settings and ) OR Buchholz / thermostat / DGPT tripping 0 O () underfrequency OR Buchholz / thermostat / DGPT alarm O () overfrequency OR overfrequency OR overvoltage (settings and ) O () undervoltage (settings and ) OR underfrequency OU undervoltage (settings and ) I PTC sensors (auxiliary voltage) I reserved for external communication synchro () according to KP set-up. N.B. The inputs are potential-free and require an external power supply source.

27 MERLIN GERIN Communication Introduction The communication option can be used to connect Sepam 000 to a remote monitoring and control system equipped with a master communication channel. Sepam can be equiped with different communication options: c Jbus/Modbus, master-slave protocol with RS type -wire physical link (00 to 00 baud rate). c FIPIO, FIP ISIS (please consult us). Sepam 000 / remote monitoring and control system communication. Communication table G0, G0 and G types remote indications logic input status logic output status operation counter phase fault trip counter running hours counter control fault: tripping or matching remote control open/close fault position/remote control discrepancy external protection tripping Sepam not reset (after fault) device closed device drawn out breaking pole fault earthing switch closed remote control enable phase overcurrent thermal overload voltage restrained overcurrent negative sequence/unbalance neutral neutral voltage displacement reverse real power () field loss (reverse reactive power) () temperature alarm temperature trip RTD fault inhibited disturbance recording remote setting disable remote readout-remote setting protection function curves, set points, time delays, angles... program logic time delays address C C C KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS0 KTS KTS0 KTS () except when used with G00 (generator-transformer unit). () remote control order set to and to 0 by communication not available with FIP option. remote measurements phase current max. demand phase currents phase-to-phase and phase-to-neutral voltage frequency real power reactive power peak demand real power peak demand reactive power power factor (p.f.) inductive or capactive network temperature (RTDs) real energy reactive energy tripping currents thermal capacity used residual current residual voltage cumulative breaking current number of trips remote control orders address priority «stop» (latched) () KTC group stop (latched) () «opening» «closing» fault acknowledgment (reset) max. demand phase current zero reset (clear) peak demand W and VAr zero reset (clear) tripping current zero reset (clear) inhibition disturbance recording automatic disturbance recording triggering manual disturbance recording triggering priority stop (latching) priority stop (unlatching) KTC KTC KTC KTC KTC KTC KTC KTC0 KTC KTC KTC KTC The data above is available via the optional communication link. The measurements available depend on the type of Sepam 000.

28 Communication (cont d) Communication table G0 and G0 types remote indications logic input status logic output status operation counter phase fault trip counter running hours counter control fault: tripping or matching remote control open/close fault position/remote control discrepancy external protection tripping Sepam not reset (after fault) device closed device drawn out breaking pole fault earthing switch closed remote control enable phase overcurrent thermal overload voltage restrained overcurrent negative sequence/unbalance neutral undervoltage, setting undervoltage, setting overvoltage, setting overvoltage, setting neutral voltage displacement underfrequency overfrequency reverse real power field loss (reverse reactive power) temperature alarm temperature trip RTD fault inhibited disturbance recording remote setting disable synchro-check active synchronism use of voltage absent mode angle gap frequency gap voltage gap stop synchronization remote readout-remote setting protection function curves, set points, time delays, angles... program logic time delays address C C C KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS0 KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS remote measurements phase current max. demand phase currents phase-to-phase and phase-to-neutral voltage frequency real power reactive power peak demand real power peak demand reactive power power factor (p.f.) inductive or capactive network temperature (RTDs) real energy reactive energy tripping currents thermal capacity used residual current residual voltage cumulative breaking current number of trips remote control orders address priority stop (latched) () KTC group stop (latched) () opening closing fault acknowledgment (reset) max. demand phase current zero reset (clear) peak demand W and VAr zero reset (clear) tripping current zero reset (clear) inhibition disturbance recording automatic disturbance recording triggering manual disturbance recording triggering priority stop (latching) priority stop (unlatching) use with voltage absent mode use without voltage absent mode closing enabled without use of synchro-check monitoring of closing with synchro-check KTC KTC KTC KTC KTC KTC KTC KTC0 KTC KTC KTC KTC KTC KTC KTC KTC The data above is available via the optional communication link. The measurements available depend on the type of Sepam 000. () remote control order set to and to 0 by communication not available with FIP option.

29 Communication table G0, G0, G0, G0 and G types remote indications address logic input status logic output status operation counter C phase fault trip counter C running hours counter C control fault: KTS tripping or matching remote control open/close fault KTS position/remote control KTS discrepancy external protection tripping KTS Sepam not reset (after fault) KTS device closed KTS0 device drawn out KTS breaking pole fault KTS earthing switch closed KTS remote control enable KTS phase overcurrent KTS thermal overload KTS voltage restrained overcurrent KTS negative sequence/unbalance KTS neutral KTS undervoltage, setting KTS0 undervoltage, setting KTS overvoltage, setting KTS overvoltage, setting KTS neutral voltage displacement KTS underfrequency KTS overfrequency KTS reverse real power KTS field loss KTS (reverse reactive power) temperature alarm KTS temperature trip KTS0 RTD fault KTS directional overcurrent KTS () directional earth fault KTS () machine differential KTS () restricted earth fault KTS inhibition disturbance recording KTS0 remote setting disable KTS remote readout-remote setting protection function curves, set points, time delays, angles... program logic time delays remote measurements phase current max. demand phase currents phase-to-phase and phase-to-neutral voltage frequency real power reactive power peak demand real power peak demand reactive power power factor (p.f.) inductive or capactive network temperature (RTDs) real energy reactive energy tripping currents thermal capacity used residual current residual voltage cumulative breaking current number of trips remote control orders address priority stop (latched) () KTC group stop (latched) () opening closing fault acknowledgment (reset) max. demand phase current zero reset (clear) peak demand W and VAr zero reset (clear) tripping current zero reset (clear) inhibition disturbance recording automatic disturbance recording triggering manual disturbance recording triggering priority stop (latching) priority stop (unlatching) KTC KTC KTC KTC KTC KTC KTC KTC0 KTC KTC KTC KTC The data above is available via the optional communication link. The measurements available depend on the type of Sepam 000. () remote control order set to and to 0 by communication not available with FIP option. () only for types which include this protection function.

30 Communication (cont d) Communication table G, G, G and G types remote indications logic input status logic output status operation counter phase fault trip counter running hours counter control fault: tripping or matching remote control open/close fault position/remote control discrepancy external protection tripping Sepam not reset (after fault) device closed device drawn out breaking pole fault earthing switch closed remote control enable phase overcurrent thermal overload voltage restrained overcurrent negative sequence/unbalance neutral undervoltage, setting undervoltage, setting overvoltage, setting overvoltage, setting neutral voltage displacement underfrequency overfrequency reverse real power field loss (reverse reactive power) temperature alarm temperature trip temperature sensor fault + PTC auxiliary voltage transformer sensors alarm transformer sensors tripping additional overcurrent protection biased differential earth fault inhibition disturbance recording remote setting disable address C C C KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS0 KTS0 KTS remote readout-remote setting protection function curves, set points, time delays, angles... program logic time delays remote measurements phase current max. demand phase currents phase-to-phase and phase-to-neutral voltage frequency real power reactive power peak demand real power peak demand reactive power power factor (p.f.) inductive or capactive network temperature (RTDs) real energy reactive energy tripping currents thermal capacity used residual current residual voltage cumulative breaking current number of trips remote control orders address priority stop (latched) () KTC group stop (latched) () opening closing fault acknowledgment (reset) max. demand phase current zero reset (clear) peak demand W and VAr zero reset (clear) tripping current zero reset (clear) inhibition disturbance recording automatic disturbance recording triggering manual disturbance recording triggering priority stop (latching) priority stop (unlatching) KTC KTC KTC KTC KTC KTC KTC KTC0 KTC KTC KTC KTC The data above is available via the optional communication link. The measurements available depend on the type of Sepam 000. () remote control order set to and to 0 by communication not available with FIP option. 0

31 Communication table G00 type remote indications logic input status logic output status Sepam not reset (after fault) remote control enable phase overcurrent neutral undervoltage, setting undervoltage, setting overvoltage, setting overvoltage, setting neutral voltage displacement underfrequency overfrequency reverse real power field loss (reverse reactive power) directional overcurrent directional earth fault send blocking input temperature alarm (DGPT, PTC) alarms (gas, Buchholz, PTC O/V) tripping (pressure, Buchholz) temperature tripping (DGPT, PTC) restricted earth fault inhibition disturbance recording remote setting disable remote readout-remote setting protection function curves, set points, time delays, angles... program logic time delays address KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS KTS KTS KTS0 KTS KTS KTS KTS KTS KTS KTS0 KTS remote measurements phase current max. demand phase currents phase-to-phase and phase-to-neutral voltage frequency real power reactive power peak demand real power peak demand reactive power power factor (p.f.) inductive or capactive network real energy reactive energy tripping currents residual current residual voltage remote control orders address fault acknowledgment (reset) KTC max. demand phase current KTC zero reset (clear) peak demand W and VAr KTC zero reset (clear) tripping current KTC zero reset (clear) inhibition disturbance recording KTC0 automatic disturbance recording KTC triggering manual disturbance recording KTC triggering The data above is available via the optional communication link. The measurements available depend on the type of Sepam 000. () remote control order set to and to 0 by communication not available with FIP option.