Automatic transfer switch PCS-9651

remotely operated

Product overview
The PCS-9651 is an Automatic Transfer Switch (ATS) relay that continuously monitors power supply lines and performs automatic transfer from a primary source to a backup source to ensure uninterrupted power to the load. The unit integrates remote/local control and supports multiple selectable switching modes for flexible station operation.

Functions

• Automatic transfer switch (ATS)
• Remote/local control
• Circuit breaker status monitoring
• Tripping circuit supervision (TCS) and VT circuit supervision (VTS)
• Self-diagnostic and voltage drift auto-adjustment
• Event, alarm and operation record management (operation reports, SOE, FDR, user logs)
• Communication interfaces for substation automation (IEC 61850, GOOSE)

Features

• Monitors voltage inputs and external binary inputs (breaker auxiliary contacts) to detect abnormal states
• Faceplate RJ45 port for local testing and commissioning
• Accepts analog inputs from conventional CT/VT and from electronic CT/VT via merging units
• Connector options: plug in/out terminal or screw terminal for easy onsite replacement
• Multiple time synchronization methods: SNTP, IEEE1588 (v2), PPS and IRIG-B
• Full IEC 61850 compliance with separate station and process bus interfaces (MMS, GOOSE, 9-2 Sampling Value)

Technical specifications

• Model: PCS-9651
• Brand: NR Electric Co., Ltd.
• Function: Automatic Transfer Switch with integrated remote/local control
• Switching modes: up to four selectable modes
• Monitoring: breaker status, TCS, VTS
• Diagnostics: self diagnostic, voltage drift auto-adjustment
• Records capacity: 64 operation reports; 1024 alarm records; 1024 control operation records; 1024 user logs; 64 FDR; 1024 SOE records
• Ethernet ports: up to four 10Base-T/100Base-TX (RJ45) or two 100Base-FX for IEC 61850-8-1 MMS and GOOSE
• Time-critical ports: up to six 100Base-FX for IEC 61850-9-2 Sampling Value and GOOSE
• Serial ports: two RS-485 (rear) with IEC 60870-5-103; one RS-485 for clock sync; one RS-232 for printer
• Faceplate: 1 RJ45 port for testing and setting
• Supported protocols: IEC 61850-8-1 MMS, IEC 61850-9-2 Sampling Value, GOOSE; IEC 60870-5-103 (incl. over TCP/IP); DNP 3.0
• Time sync: SNTP, IEEE1588 (v2), PPS, IRIG-B
• Inputs: voltage inputs and external binary inputs; analog inputs via CT/VT or merging unit
• Connector options: plug in/out terminal or screw terminal for rear-panel to terminal block connection