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PCS-985TE Transformer Relay
PCS-985TE is a kind of high performance numerical transformer protection device, which integrates main and backup protection into one device. It provides complete protection of a transformer in any voltage level, and is typically applied for startup/standby transformer or auxiliary transformer of power plant with multiple branches, and main transformer, etc.
PCS-985TE provides up to 36 analog input channels including current and voltage inputs. The transformer protections are configurable. Ancillary functions of fault diagnostic, disturbance records, event records and communication function are integrated in the device.
- Miscellaneous Transformer Protection
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Fault detector (FR)
Voltage and current drift auto adjustment.
VT circuit supervision (VTS)
CT circuit supervision (CTS)
CT saturation detection
Self diagnostic
GPS clock synchronization
Fault recorder
IEC61850 MMS & GOOSE for station bus
IEC60870-5-103 protocol
MODBUS protocol
DNP 3.0 protocol
Current differential protection (87T)
Transformer restricted earth fault protection (64REF)
Overexcitation protection (24)
Negative-sequence Overcurrent protection (50/51Q)
Phase overcurrent protection (50/51P)
Phase overcurrent alarm elements (51PAlm)
Ground overcurrent protection (50/51G)
Phase overvoltage protection (59P)
Phase undervoltage protection (27P)
Residual overvoltage protection (59G)
Overfrequency protection (81O)
Underfrequency protection (81U)
Rate-of-frequency-change protection (81R)
Thermal overload protection (49)
Impedance protection (21)
Breaker failure protection (50BF)
Pole disagreement protection (62PD)
Breaker flashover protection (50F)
Current differential protection of generator-transformer unit (87GT)
Mechanical protection (MR)