AQ-C215 Capacitor bank protection IED

The AQ-C215 capacitor bank protection has been designed specifically for the protection of feeders and capacitor banks. The IED includes capacitor bank current unbalance protection in addition to standard over current, earth fault and voltage protection. Up to three optional I/O or communication cards are available for more comprehensive monitoring and control applications. The AQ-C215 communicates using various protocols including IEC 61850 substation communication standard.

 

Highlights

  • Overcurrent and earth fault protection
  • Voltage protection
  • Capacitor bank current unbalance protection
  • Current, voltage, energy and power measurements
  • up to 100 disturbance records


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  • Capacitor bank current unbalance protection (Iuc>; 46C)
  • Three-phase overcurrent, 4 stages INST, DT or IDMT (50/51)
  • Earth-fault (sensitive), 4 stages INST, DT or IDMT (50/51N)
  • 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)
  • Undercurrent/loss of load (37)
  • 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)
  • Cable thermal protection (49L
  • Breaker failure protection (50BF/52BF)
  • Arc protection (option) (50ARC/50NARC)
  • Programmable stage (PGx >/<; 99)
  • Controllable objects: 5
  • Switch onto fault logic
  • 8 setting groups
  • Phase and residual currents (IL1, IL2, IL3, I01, I02)
  • Voltage measurements (UL1-UL3, U12-U31, U0, SS)
  • Current and voltage THD and harmonics (up to 31st)
  • Frequency (f)
  • Power (P, Q, S, pf)
  • 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: 5
  • Voltage inputs: 4
  • Digital inputs: 3 (standard)
  • Output relays: 5+1 (standard)
  • Options (3 slots)
  • Digital inputs optional: +8/16/24
  • Digital outputs optional: +5/10/15
  • Arc protection (12 sensors +2xHSO +BI)
  • 2 x mA input + 6-8 x RTD input (max 2 cards)
  • 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 60870-5-103/101/104
  • Modbus RTU, Modbus TCP/IP
  • DNP 3.0, DNP 3.0 over TCP/IP
  • SPA