AQ-G215 Generator protection device
Home Protection relays Generator protection & control AQ-G215 Generator protection device
Description
The AQ-G215 generator protection device is well-suited for machines that require complete generator protections. AQ-G215 can be combined with AQ-T216 to protect larger machines that also require differential protection and greater protection redundancy. AQ-G215 communicates using various protocols, including the IEC 61850 substation communication standard.
Highlights:
Cost-efficient synchronous machine protection.
Basic range of functionality.
Technical data
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)
Directional overcurrent (Idir>; 67) - 4 stages (INST, DT or IDMT)
Directional earth fault (I0dir>; 67N/32N) - 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)
Circuit breaker failure protection (CBFP; 50BF/52BF)
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)
Overfrequency and underfrequency (f>/<; 81O/81U) - 8 stages (INST or DT)
Rate-of-change of frequency (df/dt>/<; 81R) - 8 stages (INST or DT)
Power protection (P, Q, S>/<; 32) - 4 stages (DT)
100 % stator earth fault (U03rd>; 64S)
Underexcitation (Q<; 40)
Underimpedance (Z<; 21U)
Voltage-restrained overcurrent (Iv>; 51V)
Volts-per-hertz overexcitation (V/Hz>; 24)
Power factor protection (PF<; 55)
Machine thermal overload (TM>; 49M)
Resistance temperature detectors (RTD)
Voltage memory
Programmable stage (PGx>/<; 99)
Arc protection (IArc>/I0Arc>; 50Arc/50NArc) (optional)
Number of objects to control and monitor: 5
Number of indicators to monitor: 5
Number of setting groups: 8
Vector jump (Δφ; 78)
Synchrocheck (ΔV/Δa/Δf; 25)
Phase, sequence and residual currents (IL1, IL2, IL3, I01, I02)
Phase, sequence and residual voltages (UL1, UL2, UL3, UL12, UL23, UL31, U0)
Frequency (f)
Power (P, Q, S, pf) and Energy (E+, E-, Eq+, Eq-)
Power and energy class 0.5
Power and energy measurement accuracy of up to 0.2 % (optional)
Current transformer supervision
Voltage transformer supervision (60)
Circuit breaker wear monitoring
Total harmonic distortion (current)
Measurement recorder
Measurement value recorder
Event recorder (max. 15 000 permanent event records)
Disturbance recorder (max. 100 records á 5 seconds at 3.2 kHz sampling)
Current inputs: 5
Voltage inputs: 4
Digital inputs (fixed): 3
Digital outputs (fixed): 5
Number of empty slots: 3
Digital inputs: +8/16/24 (optional)
Digital outputs: +5/10 (optional)
Milliampere I/O module (4 mA outputs + 1 mA input) (optional)
RTD input module (8 RTD inputs) (optional)
Arc protection module (4 sensors + 2 HSO + 1 BI) (optional)
Communication media (see "Communication" below)
External I/O modules (see "Accessories" below)
Communication inputs
RJ-45 100 Mbps Ethernet (front panel, fixed)
RJ-45 100 Mbps Ethernet and RS-485 (rear panel, fixed)
Double RJ-45 Ethernet & IRIG-B communication module (optional)
Double ST Ethernet & IRIG-B communication module (optional)
Double LC (HSR/PRP) Ethernet communication module (optional)
Double RJ-45 (HSR/PRP) Ethernet communication module (optional)
RS-232 & serial fiber communication module (optional)
Communication protocols
IEC 61850 (edition 1)
IEC 60870-5-101/104
IEC 60870-5-103
Modbus/RTU and Modbus/TCP
DNP3
SPA
AX007 External 6-channel 2-/3-wire RTD input module (pre-configured)
AX008 External 8-channel thermocouple and mA input module (pre-configured)
AX009 Raising frame (87 mm)
AX010 Raising frame (40 mm)
AX011 Combiflex frame
AX012 Wall mounting bracket
Download
AQ 200 series flyer, v2.01 (English)
AQ 200 series flyer, v2.01 (Finnish)
AQ 200 series flyer, v2.01 (Swedish)
AQ 200 series product catalog (ANSI, v2.03, EN, September 2024)
AQ 200 series product catalog (IEC, v2.03, EN, September 2024)
AQtivate PRO flyer, v1.00 (English)
AQtivate PRO flyer, v1.00 (Finnish)
