AQ-T216 Transformer Protection Device
Home Protection relays Transformer protection & control AQ-T216 Transformer Protection Device
Description
AQ-T216 is a transformer protection device with sophisticated and easy-to-use differential protection functions. The relay provides overcurrent protection for both low-voltage and high-voltage sides, earth fault protection, negative sequence overcurrent protection as well as two independent instances of restricted earth fault protection. Additionally, AQ-T216 can be applied to generator and motor differential protection. AQ-T216 communicates using various protocols, including communication according to the IEC 61850 standard.
Highlights:
Both predefined and customizable connection group selection.
2nd and 5th harmonic blocking.
Automatic verification for the connection group and nominal value settings.
Overloading and through fault statistics for preventive maintenance.
Technical data
Non-directional overcurrent (I>; 50/51) - 4 stages
Non-directional earth fault (I0>; 50N/51N) - 4 stages
Negative sequence overcurrent/ Phase current reversal/ Current unbalance (I2>; 46/46R/46L) - 4 stages
Harmonic overcurrent (Ih>; 50H/51H/68H) - 4 stages
Circuit breaker failure protection (CBFP; 50BF/52BF)
High-impedance or low-impedance restricted earth fault/ Cable end differential (I0d>; 87N)
Transformer status monitoring
Transformer thermal overload (TT>; 49T)
Generator/motor/transformer differential (Idx>; 87T/87G/87M/87N)
Resistance temperature detectors (RTD)
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
Cold load pick-up (CLPU)
Current transformer supervision - 2 instances
Circuit breaker wear monitoring
Total harmonic distortion (current)
Running hour counter
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)
Phase, sequence and residual currents (IL1, IL2, IL3, I01, I02)
Frequency (f)
Standard hardware
Current inputs: 10
Digital inputs: 3
Digital outputs: 5
Number of empty slots: 2
Optional hardware modules
Digital input module (8 x DI)
Digital output module (5 x DO)
Milliampere output module (4 x mA out, 1 x mA in)
RTD input module (8 RTD inputs)
Arc protection module (4 x channels, 2 x HSO, 1 x BI)
Communication media (see "Communication" below)
External I/O modules (see "Accessories" below)
Standard communication ports
RJ-45 100 Mbps Ethernet (front panel)
RJ-45 100 Mbps Ethernet and RS-485 (rear panel)
Optional communication modules
Double RJ-45 Ethernet & IRIG-B communication module
Double ST Ethernet & IRIG-B communication module
Double LC (HSR/PRP) Ethernet communication module
Double RJ-45 (HSR/PRP) Ethernet communication module
RS-232 & serial fiber communication module
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
