AQ-C215 Capacitor bank protection IED

The AQ-C215 capacitor bank protection IED has been specifically designed for the protection of capacitor banks. It includes capacitor bank current unbalance and overload protection in addition to standard overcurrent, earth fault and voltage protections. You can add up to three (3) optional I/O or communication cards into the device for more comprehensive monitoring and control applications. AQ-C215 communicates using various protocols, including the IEC 61850 substation communication standard.

 

Highlights

  • Overcurrent, earth fault, and voltage protections
  • Capacitor bank current unbalance protection with natural unbalance compensation
  • Capacitor bank overload protection
  • Harmonic overcurrent protection
  • Current, voltage, energy and power measurements
  • Up to 100 disturbance records


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  • 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)
  • Negative sequence overcurrent/ Phase current reversal/ Current unbalance (I2>; 46/46R/46L) - 4 stages (INST, DT or IDMT)
  • Harmonic overcurrent (Ih>; 50H/51H/68H) - 4 stages (INST, DT or IDMT)
  • Capacitor bank current unbalance (Iuc>; 46C)
  • Capacitor bank overload protection (Icol>; 49OL)
  • 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)
  • Sequence voltage (U1/U2>/<; 47/27P/59PN) - 4 stages (INST, DT or IDMT)
  • Line thermal overload (TF>; 49F)
  • Voltage memory
  • Programmable stage (PGx>/<; 99)
  • Arc protection (IArc>/I0Arc>; 50Arc/50NArc) (optional)
  • 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)
  • Power and energy class 0.5
  • Power and energy class 0.2S (optional)
  • Frequency (f)
  • Power (P, Q, S, pf) and Energy (E+, E-, Eq+, Eq-)
  • Current transformer supervision
  • Voltage transformer supervision (60)
  • Total harmonic distortion
  • Measurement recorder
  • Measurement value recorder
  • Disturbance recorder (max. 15 000 permanent event records)
  • Current inputs: 5
  • Voltage inputs: 4
  • Digital inputs (fixed): 3
  • Digital outputs (fixed): 5
  • Options (3 slots)
  • Digital inputs: +8/16/24
  • Digital outputs: +5/10
  • RTD & mA input module (8 RTD inputs OR 4 RTD inputs + 2 mA inputs)
  • Milliampere I/O module (4 mA outputs + 1 mA input)
  • Arc protection module (4 sensors + 2 HSO + 1 BI)
  • Communication media (specified in the "Communication" tab)
  • RJ-45 100 Mbps Ethernet (front panel, fixed)
  • RJ-45 100 Mbps Ethernet and RS-485 (rear panel, fixed)
  • Double LC 100 Mbps Ethernet (PRP/HSR) (optional)
  • Double ST 100 Mbps Ethernet (optional)
  • Double RJ-45 100 Mbps Ethernet (optional)
  • RS-232 & serial fibre (PP/PG/GP/GG) (optional)
  • Communication protocols
  • IEC 61850
  • IEC 60870-5-101/104
  • IEC 60870-5-103
  • Modbus/RTU and Modbus/TCP
  • DNP3
  • SPA

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