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 (Iuc>; 46C)
  • Non-directional overcurrent (I>; 50/51) - 4 stages (INST, DT or IDMT)
  • Non-directional earth fault (I0>; 50N/51N) - 4 stages (INST, DT or IDMT)
  • Harmonic overcurrent (Ih>; 50H/51H/68H) - 4 stages (INST, DT or IDMT)
  • Non-directional undercurrent (I<; 37)
  • Overvoltage (U>; 59) - 4 stages (INST, DT or IDMT)
  • Undervoltage (U<; 27) - 4 stages (INST, DT or IDMT)
  • Neutral overvoltage (U0>; 59N) - 4 stages (INST, DT or IDMT)
  • Line thermal overload (TF>; 49F)
  • Arc protection (IArc>/I0Arc>; 50Arc/50NArc) (optional)
  • Programmable stage (PGx>/<; 99)
  • Number of objects to control and monitor: 5
  • Switch-on-to-fault
  • Number of setting groups: 8
  • Phase, sequence and residual currents (IL1, IL2, IL3, I01, I02)
  • Phase, sequence and residual voltages (UL1, UL2, UL3, U12, U23, U31, U0)
  • Frequency (f)
  • Circuit breaker wear monitoring
  • Disturbance recorder (max. 15 000 permanent event records)
  • Current transformer supervision
  • Voltage transformer supervision (60)
  • Trip circuit supervision
  • Event recording
  • Current inputs: 5
  • Voltage inputs: 4
  • Digital inputs (fixed): 6
  • Options (3 slots)
  • Digital inputs: +8/16/24
  • RJ-45 100 Mbps Ethernet and RS-485 (rear panel, fixed)
  • Double LC 100 Mbps Ethernet (optional)
  • RS-232 & serial fibre (PP/PG/GP/GG) (optional)
  • Communication protocols
  • IEC 61850
  • IEC 60870-5-101/104
  • Modbus/RTU and Modbus/TCP
  • DNP3
  • SPA