SUPERVISION
Operating mode of the Interlock PLC (MAN, AUTO)
Status of equipments
Status of VCBs (OPEN, CLOSE, TRIP, REMOTE/LOCAL, RACK IN/ RACK OUT).
Measured value indication
- Busbar voltage.
- Current, active power, reactive power, power factor of incoming main circuit.
- Current, active power, reactive power, power factor of outgoing feeder circuit.
- Temperature and oil level of genset; voltage, current and power of gensets.
- Voltage of batteries.
Alarm indication
- Status of VCBs (in Remote mode) that do not follow control signal.
- Recommended actions that the operator should take on the VCBs in local mode such that the Interlock Matrix is satisfied.
- Trip status of VCBs.
- Overvoltage or under-voltage of busbar.
- Overcurrent in incoming main circuit / outgoing feeder circuit.
- Overvoltage or under-voltage of batteries.
- Communication errors.
Historical data processing
- Real Time measurement data (current, voltage, power) are periodically collected and stored in database.
- Historical data sampling intervals can be set by the administrator.
- Waveform of current, voltage, power measurement (historical or real time) over a specific period can be displayed on the HMI monitor.
Event log
- Start and stop SCADA system.
- Alarms.
- Working mode changes.
- Error command in manual control mode.
- User login and logout of workstation.
Report and printing
- Report alarm events.
- Print the waveform of current, voltage, power measurement over a specific period.
- Print the alarm log over a specific period.
- Print the current screen.