Ramveer olan seminar report for gss
- 1. A PRACTICAL TRANING SEMINAR BY:-Ramveer Olan
- 2. Sub-station is a subsidiary station of an electricity generation , transmission and distribution system where voltage is transformed from high to low or low to high voltage using transformers.
- 3. Sub-station should be located at load center Sufficient land area Grounding Easy of maintenance Possibility to Expand Reliability and Security Electrical design considerations
- 4. EQUIPMENTS OF SUB STATION : Lightning Arrester Wave traps Isolator Instrument Transformers Power Transformer Insulator Circuit Breaker Power Line Carrier Communication (PLCC)
- 5. Lightning Arrester :- To discharge lightning over voltages and switching over voltages to earth.
- 6. Wave Trap :- To prevent high frequency signals from entering other zones.
- 7. Isolators :- Disconnection under no-load condition for safety, isolation and maintenance.
- 8. TYPES OF ISOLATOR BUS ISOLATOR LINE ISOLATOR TRANSFORMER ISOLATING SWITCH
- 9. TRANSFORMER A TRANSFORMER IS A STATIC AC DEVICE WHICH CONVERT ELECTRIC ENREGY FROM ONE FORM TO ANOTHER 1.INSTRUMENTAL TRANSFORMER CURRENT TRANSFORMER A C.T IS USED TO STEP DOWN CURRENT FOR MEASUREMENT,CONTROL AND PROTECTION POTENTIAL TRANSFORMER A P.T IS USED TO STEP DOWN VOLTAGE FOR MEASUREMENT, CONTROL AND PROTECTION 2.POWER TRANSFORMER 1.CORE TYPE 2.SHELL TYPE
- 10. Current Transformer :- To step-down currents for measurement, control & protection.
- 11. Power Transformer :- To step-up or step-down the voltage and transfer power from one a.c. voltage another a.c. voltage at the same frequency.
- 12. TRANSFORMER COOLING Natural cooling Oil blast cooling Forced oil cooling Forced air cooling
- 13. TRANSFORMER USED There are 5 transformer are used in grid sub station 1.220/132 (i) & (ii) 2.132/33 (i) & (ii) 3.132/11
- 15. Circuit Breaker :- Automatic switching during normal or abnormal conditions.
- 16. CIRCUIT BREAKER Minimum oil Circuit Breaker Air Blast Circuit Breaker SF 6 Circuit Breaker Vacuum Circuit Breaker
- 17. POWER LINE CARRIER COMMUNICATION (PLCC) Wave trap Coupling Capacitor
- 18. EARTHING Neutral Earthing Electric Earthing
- 20. QUERY ?