PCS-931S line differential relay integrates main and back-up protection functions, which is designed for overhead line, cables and hybrid transmission lines of various voltage levels and provides comprehensive protection and control solutions. With its flexibility and the powerful PCS-Studio configuration tool, PCS-931S offers future-oriented system solutions with high investment security and low operating costs.
Санал авах
High-speed DPFC distance protection (21D)
Six zone phase-to-phase distance protection (21L)
Six zone phase-to-ground distance protection (21L)
DPFC current differential protection (87L)
Steady-state current differential protection (87L)
Neutral current differential protection (87L)
Pilot distance protection (85)
Pilot directional earth-fault protection (85)
Unique power swing blocking releasing logic (PSBR)
Six stages phase overcurrent protection (67P, 50/51P)
Six stages earth-fault protection (67G, 50/51G)
Two stages negative-sequence overcurrent protection (67Q, 50/51Q)
Switch-onto-fault (SOTF) logic
Two stages phase undervoltage protection (27P)
Two stages phase overvoltage protection (59P)
Two stages negative-sequence overvoltage protection (59Q)
Two stages residual overvoltage protection (59G)
Four stages overfrequency protection (81O)
Four stages underfrequency protection (81U)
Four stages frequency rate-of-change protection (81R)
Two stages reverse power protection (32R)
Two stages thermal overload protection (49P)
One stage undercurrent protection (37)
Breaker failure protection (50BF)
Flashover protection (50F)
Dead zone protection (50DZ)
Broken conductor protection (46BC)
Pole discrepancy protection (62PD)
Stub differential protection (87STB)
Out-of-step protection (78)
Auto-reclosing (79)
Switchgear control
Synchronism Check (25)
Voltage selection
Voltage and current drift auto adjustment
Single-ended impedance-based fault location
Travelling-Wave fault location including single-ended travelling-wave-based method and double-ended travelling-wave-based method
Synchronize with the GPS time by IRIG-B time source
Calculate analog values, including: active power (P), reactive power (Q), frequency, ROCOF (df/dt)
Transmit binary status of the IED to PDC (Phasor Data Concentrator) according to IEEE C37.118 standard
Realize high accurate measurement of the phasors and analogs according to the IEEE C37.118.1-2011 and IEEE C37.118.1a-2014 standard.
Communicate with PDC according to IEEE C37.118-2005 and IEEE C37.118.2-2011
Supporting P Class or M Class measurement (user selectable)
Measurement of up to 32 binary status (user configurable)
Output of synchrophasor with timestamp, support of multiple protocols (TCP, TCP-UDP, UDP) and multiple data rates (2f0, f0, f0/2) for maximum 4 clients (PDC)
Current and voltage measurement at a 2.4KHz sampling rate
Current and voltage measurement at a 9.6KHz sampling rate
Travelling wave current measurement at a 1MHz sampling rate
Energy metering (active and reactive energy are calculated in import respectively export direction)
Power (Apparent/Real/Reactive)
Power factor
Frequency
Current, voltage and active/reactive power calibration
Event Recorder including 1024 disturbance records, 1024 binary events, 1024 supervision events, 256 control logs and 1024 device logs.
64 disturbance waveforms records (The file format of disturbance recorder is compatible with international COMTRADE file.)
64 travelling wave fault location (TWFL) records (The file format of disturbance recorder is compatible with international COMTRADE file.)
64 high-frequency waveforms records (The file format of disturbance recorder is compatible with international COMTRADE file.)
Calculate analog values, including: active power (P), reactive power (Q), frequency, ROCOF (df/dt)
Transmit binary status of the IED to PDC (Phasor Data Concentrator) according to IEEE C37.118 standard
Realize high accurate measurement of the phasors and analogs according to the IEEE C37.118.1-2011 and IEEE C37.118.1a-2014 standard.
Communicate with PDC according to IEEE C37.118-2005 and IEEE C37.118.2-2011
Supporting P Class or M Class measurement (user selectable)
Measurement of up to 32 binary status (user configurable)
Output of synchrophasor with timestamp, support of multiple protocols (TCP, TCP-UDP, UDP) and multiple data rates (2f0, f0, f0/2) for maximum 4 clients (PDC)
