3. Automated Control System for Power Supply Facilities
The following tasks are performed by this automated control system:
- status indication of high-voltage cell circuit breakers (on, off, tripped – including description of the reason of tripping);
- status indication of grounding blades of HV switches (grounded);
- status indication of automatic switches in transformer substations (on);
- common signals: failure (general), warning, voltage monitoring in operating circuits, ground leak protection activation;
- substation opening alarm (door limit switches);
- remote control of HV cell circuit breakers;
- measurement of bus section voltage;
- power and current measurement at inlet and outlet feeders;
- commercial accounting of active and reactive energy at inlet and outlet feeders;
- power factor monitoring;
- monitoring of harmonic distortions in bus sections of indoor switchgear;
- monitoring of microprocessor protection status of each HV cell;
- monitoring of HV protections activation with reason explanation;
- preparation of reports and records on routine switchings, alert conditions and power consumption.
The information is displayed at the following automated workstations (AWS):
Siemens and ABB equipment shall be considered as hardware and software complexes preferred for automation of this technology (power equipment and microprocessor protections must be provided by the same manufacturer).