AQ-G215 Generator Protection IED
The AQ-G215 generator protection IED is well suited for machines requiring complete generator protections. It can be combined with AQ-T216 to protect larger machines requiring differential protection and greater protection redundancy. The AQ-G215 communicates using various protocols including IEC 61850 substation communication standard.
Highlights
- Cost efficient synchronous machine protection
| Protection |
|---|
| Three-phase overcurrent, 2 stages INST, DT or IDMT (50/51) |
| Earth-fault (sensitive), 2 stages INST, DT or IDMT (50/51N) |
| Harmonic overcurrent / inrush blocking, 1 stage 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) earth-fault, 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 earth-fault (64S) |
| Over/Under/Reverse power (32/37/32R) |
| Generator thermal overload (49G/49RTD) |
| Under impedance (21U) |
| Volts per hertz (24) |
| Breaker failure protection (50BF/52BF) |
| Arc protection (option) (50ARC/50NARC) |