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Нүүр хуудас Transformer relay Transmission Line Protection

PCS-9671S Transformer Relay

PCS-9671S has been designed specifically for the protection of various type power transformers (up to 3 measuring points), including two-winding transformers, three-winding transformers, auto-transformers, as well as shunt reactors, in 110kV voltage level and below. PCS-9671S provides the main protection elements, such as: current differential protection and restricted earth fault protection. With its modular structure, flexibility and the powerful PCS-Studio engineering tool, PCS-9671S offers future-oriented system solutions with high investment security and low operating costs.

Санал авах

PCS-9671S has been designed specifically for the protection of various type power transformers (up to 3 measuring points), including two-winding transformers, three-winding transformers, auto-transformers, as well as shunt reactors, in 110kV voltage level and below. PCS-9671S provides the main protection elements, such as: current differential protection and restricted earth fault protection. With its modular structure, flexibility and the powerful PCS-Studio engineering tool, PCS-9671S offers future-oriented system solutions with high investment security and low operating costs.

  • Transformer differential protection (87T)
  • Inrush blocking
  • CT saturation blocking
  • Overexcitation blocking
  • CT circuit failure blocking
  • Amplitude compensation
  • Phase angle compensation
  • Reactor differential protection (87R)
  • Restricted earth-fault protection (64REF)
  • Phase overcurrent protection (50/51P)
  • Earth-fault protection (50/51G)
  • Current drift auto adjustment
  • Positive sequence currents, zero sequence currents and phase angles
  • DC analogue inputs (0~±20mA or 0~±10V) 
  • DC analogue outputs (4~20mA, 0~10V, 0~5V or 0~20mA)
  • CT circuit failure Supervision (CTS)
  • Tripping circuit supervision (TCS)
  • Self diagnostic
  • Powerful faults recording (max. buffer for 10,000 sampled points at 1.2 or 9.6 kHz)
  • Event recorder including 1024 disturbance records, 1024 binary events, 1024 supervision events, 256 control logs and 1024 device logs
  • Disturbance recorder including 64 disturbance records with waveforms (the file format of disturbance recorder is compatible with international COMTRADE file)
  • Single line diagram representation in display
  • Support of various protocols
  • Modbus, DNP3.0, IEC 60870-5-103, IEC 61850 Ed.1 & Ed.2, IEC 61850 MMS Server, IEC 61850-8-1 GOOSE,IEC 62439 Parallel Redundancy Protocol (PRP), IEC 62439 High-availability Seamless Ring (HSR) Redundancy Protocol, IEEE 802.1w Rapid Spanning Tree Protocol (RSTP).
  • Up to four 10Base-T/100Base-TX copper Ethernet ports
  • Up to four 100Base-FX optical Ethernet ports
  • Two RS-485 serial ports for communication, the second one could be used as a RS-232 port for printer.
  • One RS-485/TTL serial port for clock synchronization
  • One BNC port for clock synchronization
  • One ST-connector port for clock synchronization
  • Two RJ45 debugging ports (front and rear)