OverviewPCS-9659 is a digital synchronizer designed for generator-to-bus paralleling and line reclosing. It continuously monitors voltage, frequency and phase angle and issues correction signals to the prime mover governor and generator voltage regulator to achieve voltage and frequency matching. The device supports automatic, semi-automatic and manual synchronizing modes and is adapted for multi-generator systems in industrial and power-distribution applications.
Protection and Control - Modes & Functionality- Automatic synchronizing (25A)
- Semi-automatic synchronizing (25SA)
- Manual synchronizing (25M)
- Multi-generator paralleling: synchronization support for up to 10 circuit breakers with independent frequency and voltage regulation per breaker
- Blocking output to external equipment and input for receiving external blocking signals
Alarms, Events & Recorder- Low voltage alarms (system side and connection side)
- PT circuit failure alarms (both sides)
- Synchronous mode error and synchronization failure alarms
- Over-voltage, synchronization count error, remote startup error
- Self-diagnostic and built-in fault recorder
- Total 1024 SOE entries (closing, alarms, binary input changes, operator actions)
- 64 closing records
Communication & Interface- Ethernet: up to four 10Base-T/100Base-TX (RJ45) or two 100Base-FX ports; supports IEC 61850-8-1 MMS, IEC 60870-5-103 over TCP/IP, Modbus TCP
- Two RS-485 rear ports for IEC 60870-5-103 or Modbus RTU
- One RS-485 port for clock synchronization and one RS-232 port for printer
- Front faceplate RJ45 port for testing and configuration
- Clock synchronization via pulse, IRIG-B and SNTP
Technical specifications- Model: PCS-9659
- Function: Digital synchronizer for generator/bus paralleling and line reclosing
- Synchronizing modes: Automatic (25A), Semi-automatic (25SA), Manual (25M)
- Multi-generator paralleling: up to 10 circuit breakers
- Event storage: 1024 SOE entries
- Closing records: 64
- Alarm types: low-voltage, PT circuit failure, synchronous mode error, over-voltage, synchronization failure, synchronization counts error, remote startup error, self-diagnostic
- Fault recorder: included
- Ethernet: up to 4x 10/100Base-TX RJ45 or 2x 100Base-FX (IEC 61850-8-1 MMS, IEC 60870-5-103 TCP/IP, Modbus TCP)
- Serial: RS-485 (two for protocols, one for clock sync), RS-232 for printer
- Faceplate RJ45: testing and setting
- Clock sync: pulse, IRIG-B, SNTP