Automated power supply facility monitoring and control system. Surface and underground mine switchgear, transformer substations, compact stations and frequency converters

This system is provided with the following functions

• high-voltage cell breaker status signalling (on, off and emergency off with indication of the reason for switching off);
• high-voltage earthing switch position signalling (“connected to earth”);
• automatic transformer substation (TS) switch position signalling (“on”);
• common station signals: emergency (common), warning, auxiliary circuit voltage control and earth leakage protection triggering;
• “substation opened” signal (door-mounted limit switches);
• remote high-voltage cell breaker control;
• voltage measurement on busbar sections;
• power and current measurement on incoming and outgoing feeders;
• commercial active and reactive energy metering on incoming and outgoing feeders;
• power factor control;
• harmonic distortion control on the busbar sections of indoor switchgear;
• microprocessing protection status monitoring for every high-voltage cell;
• high-voltage protection triggering control with indication of the reason;
• generation of reports and protocols describing operational switchings, emergency conditions and power consumption.

Information is presented at the following automated workstations (AWSs):

• AWS of the dispatcher responsible for the electrical power supply of the mining and processing plant;
• AWS of the electrical supervisor (within the scope of report forms including technical and economic system performance per every 3 min./30 min./ hour/shift/day/month/quarter/year);
• AWS of the deputy electrical supervisor.