sub-stationmaintence basic part 0.1.pptx

to get rady

1. 440 VOLTS LT AC PANEL CI EARTH PITS AB SWITCH 800 AMPS DOUBLE BREAK (PIPE TYPE AND BLADE TYPE) 400 AMPS SINGLE BREAK (BLADE TYPE) CLAMPS T CLAMPS PAD CLAMPS STUD CLAMPS PIPE TYPE T CLAMPS SCADA KIOSK (INTERFACE PANEL) RTU 48 VOLTS BATTERIES WITH CHARGER SUB- STATION EQUIPMENT

2. CIRCUIT BREAKER Circuit Breaker is the heart of the switch gear. It is a mechanical switching device which is capable of making (Closing), breaking (Opening) and carrying current in power system under normal and abnormal conditions. Relay is a sensing device which sense the fault current and send signal to circuit breaker to open thus clears the fault.

3. CIRCUIT BREAKER 33 KV BHEL MAKE VCB VACCUM INTERRUPTER WITH TOP BUSHING BOTTOM BUSHING DRIVE MECHANISM

4. CIRCUIT BREAKER CLOSE COIL TRIP COILS CLOSING SPING MANUAL CHARGING DRIVING GEAR BOX MANUAL CLOSING MANUAL TRIPPING

5. CONTROL AND RELAY PANEL

6. 220 VOLTS FLOAT CUM BOOST CHARGER WITH 80 AH SMF BATTERIES

7. POWER TRANSFORMER

8. BREATHER

9. TRANSFORMER WINDING AND OIL TEMPERATURE INDICATORS • WINDING TEMPERATURE READING SHOULD ALWAYS MORE THAN OIL TEMPERATURE READING OIL TEMPERATURE SET AT 80 C – ALARM, 85 C – TRIP WINDING TEMPERATURE SET AT 85 C – ALARM, 90 C TRIP OIL CHARARISTICS WILL CHANGE IF OIL TEMPERATURE REACHED ABOVE 85 C WINDING TEMPERATURE SHOULD NOT BE TOUCHED ABOVE 90 C, OTHERWISE INSULATION WILL BE DETORIORATED • • • •

10. RADIATOR FINS

11. CURRENT TRANSFORMERS • ALWAYS USE STUD TYPE CLAMPS FOR CT BUSH RODS DON’T USE MS NUT AND BOLTS FOR CT CONNECTIONS USE ONLY YELLOW COATED/ CADMIUM COATED CLAMPS FOR CT BUSH RODS • •

12. 11 KV 2 MVAR CAPACITOR BANK

13. 2 MVAR C&R PANEL

14. SCADA PANELS

15. CI EARTH PIT

16. ALARM CUM CONTROL BOARD