RS232 fault recorder PCS-986

GPSEthernetRS485

Overview
The PCS-986 disturbance and fault recorder is engineered for monitoring and recording electrical parameters and operational events of generator-transformer units and power plant protection & control devices. Its modular unit architecture enables flexible hardware and software assembly and future upgrades.

Communications

• 1 RJ45 Ethernet port supporting IEC60870-5-103 and IEC61850
• 1 RS-485 serial port for GPS time synchronization
• 1 RS-232 serial port for device testing and configuration
• 1 dedicated Ethernet interface for FTP continuous recording and real-time waveform display

Auxiliary Function

• Self-diagnostic tests
• DC power loss alarm
• Hardware circuit online detection
• IRIG-B time synchronization support

Recording Functions

• Triggers based on AC voltage
  • Phase voltage sudden change
  • Positive-sequence voltage sudden change
  • Zero-sequence voltage sudden change
• Triggers based on AC current
  • Phase current sudden change
  • Positive-sequence current sudden change
  • Zero-sequence current sudden change
• Triggers for voltage/current out-of-limit
• Triggers for positive/negative sequence component limits
• Triggers for DC sudden change or DC component limits
• Frequency out-of-limit and sudden change detection
• Third harmonic out-of-limit detection
• Over-excitation and reverse power detection
• Low-frequency overcurrent / zero-sequence voltage for startup/shutdown
• Differential current monitoring for main, step-down, generator or excitation transformers
• Triggers from binary inputs, system oscillation, manual and remote initiation
• Continuous 24-hour recording capability

Technical specifications

• Model series: PCS-986
• Designed for generator-transformer units and power plant protection & control devices
• Modular unit architecture for hardware and software upgrades
• Supported protocols: IEC60870-5-103, IEC61850
• Ethernet: RJ45 port and separate Ethernet interface with FTP support for continuous storage and real-time waveform
• Serial ports: RS-485 (GPS sync), RS-232 (test/config)
• Time sync: GPS via RS-485, IRIG-B support
• Alarms/diagnostics: self-diagnostic, DC power loss alarm, hardware online detection
• Recording triggers: voltage/current sudden changes, sequence component changes, DC changes, frequency/harmonic limits, over-excitation, reverse power, differential current, binary inputs, system oscillation
• Recording modes: manual, remote, automatic triggers, continuous 24h recording
• FTP storage support for continuous recordings