Generator and Motor Commander

Synchronous machine control & protection in one package

The Generator and Motor Commander is a new innovation combining synchronous machine protection and control into one unit. Compared to traditional systems with several separate units and software, the Generator and Motor Commander takes less space and saves considerable hours of engineering time. Operation is smooth as there is only one interface to the system.

 

Highlights

  • Over 86% space savings compared to traditional solution.
  • Less spare parts needed.
  • One, easy to use, software saves engineering time
  • The included software wizard adapts the data from the generator specifications and calculates the majority of the parameters directly.
  • 0,2S class measurement, robust technology and the newest protection functions guarantee the best solution available on the market.

  • Generator protection functions
  • Generator/transformer differential (87G/T)
  • Threephase overcurrent, 2 stages INST, DT or IDMT (50/51)
  • Earthfault (sensitive), 2 stages INST, DT or IDMT (50/51N)
  • Harmonic overcurrent / inrush blocking, 4 stages INST, DT or IDMT (50/51H, 68)
  • Current unbalance / broken conductor, 2 stages INST, DT or IDMT (46/46R/46L)
  • High/low impedance restricted earth fault / cable end differential * (87N)
  • Directional overcurrent, 4 stages INST, DT or IDMT (67)
  • Directional (sensitive) earthfault, 4 stages INST, DT or IDMT (67N)
  • Overvoltage, 2 stages INST, DT or IDMT (59)
  • Undervoltage, 2 stages INST, DT or IDMT (27)
  • Zero sequence overvoltage, 2 stages INST, DT or IDMT (59N)
  • Positive/Negative sequence overvoltage, 2 stages INST, DT or IDMT (59N/47)
  • Over/under frequency, 4 stages INST or DT (81O/81U)
  • Rate of change of frequency, 4 stages INST or DT or IDMT (81R)
  • Loss of field (40)
  • Voltage restrained overcurrent (51V)
  • Field ground / 100% stator earthfault (64S)
  • Rotor earthfault protection (64R)
  • Over/Under/Reverse power (32/37/32R)
  • Generator thermal overload (49G/49RTD)
  • Under impedance (21U)
  • Volts per hertz (24)
  • Out of step / pole slip (78)
  • Breaker failure protection (50BF/52BF)
  • Arc protection (option) (50ARC/50NARC)
  • Motor differential (87M)
  • Three-phase overcurrent, 4 stages INST, DT or IDMT (50/51)
  • Earth-fault (sensitive), 4 stages INST, DT or IDMT (50/51N)
  • Directional overcurrent, 4 stages INST, DT or IDMT (67)
  • Directional (sensitive) earth-fault, 4 stages INST, DT or IDMT (67N)
  • Harmonic overcurrent / inrush blocking, 4 stages INST, DT or IDMT (50/51H, 68)
  • Current unbalance / broken conductor, 4 stages INST, DT or IDMT (46/46R/46L)
  • High/low impedance restricted earth fault / cable end differential (87N)
  • Motor thermal overload (49M)
  • Motor start-up / locked rotor supervision with speed switch (48, 14)
  • Restart inhibit / frequent starts (66/86)
  • Undercurrent/loss of load (37)
  • Power factor protection (55)
  • Mechanical jam (51M)
  • Loss of field (40)
  • Overvoltage, 4 stages INST, DT or IDMT (59)
  • Undervoltage, 4 stages INST, DT or IDMT (27)
  • Zero sequence overvoltage, 4 stages INST, DT or IDMT (59N)
  • Negative/positive sequence overvoltage, 4 stages INST, DT or IDMT (47)
  • Over/under frequency, 8 stages INST or DT (81O/81U)
  • Breaker failure protection (50BF,52BF)
  • Arc protection (option) (50ARC/50NARC)
  • Synchronizer with synchro check
  • Excitation with external IGBT bridge
  • Synchrocheck (25)
  • Controllable objects: 10
  • 8 setting groups
  • Phase and residual currents (IL1, IL2, IL3, I01, I02)
  • Voltage measurements (UL1UL3, U12U31, U0, SS)
  • Current and voltage THD and harmonics (up to 31st)
  • Frequency (f)
  • Power (P, Q, S, pf) and Energy (E+, E, Eq+, Eq)
  • Circuit breaker wear (CBW)
  • Disturbance recorder (3.2 kHz)
  • Current transformer supervision (CTS)
  • Fuse failure (VTS)
  • Trip circuit supervision (TCS)
  • Event recording
  • Non-volatile disturbance records: 100
  • Non-volatile event records: 15000
  • Current inputs: 10
  • Voltage inputs: 4
  • Digital inputs: 3 (standard)
  • Output relays: 5+1 (standard)
  • Options (11 slots)
  • Digital inputs optional: +8/16/24/32/40/48/56/64/72
  • Digital outputs optional: +5/10/15/20/25
  • Arc protection (12 sensors +2xHSO +BI)
  • 2 x mA input + 68 x RTD input
  • Communication media (specified below)
  • RJ 45 Ethernet 100Mb (front standard)
  • RJ 45 Ethernet 100Mb and RS 485 (rear standard)
  • Double LC Ethernet 100Mb (option)
  • RS232 + serial fibre PP/PG/GP/GG (option)
  • Communication protocols
  • IEC 61850
  • IEC 608705103/101/104
  • Modbus RTU, Modbus TCP/IP
  • DNP 3.0, DNP 3.0 over TCP/IP
  • SPA