363088778-Presentation-on-220kv-Sub-Station.pptx

Presentation on grid

1. Presentation on Electrical Substation SUBMITTED TO : SUBMITTED BY: FACULTY OF Rahul Sikka EEE DEPARTMENT 1141850 B.TECH. EEE 5 th SEM

2. It is a medium power station with four units that were begun to built in early 1970s and completed in 1982. All total generate up to 440 MW of power. Each unit generate up to110 MW of power. G.N.D.T.P. is a coal-based plant. The requirement of coal for four units based on specific fuel consumption of 0.60 kg / kwh. INTRODUCTION OF G.N.D.T.P.

3. KEY DIAGRAM OF 220/132 K.V. SUBSTAION G.N.D.T.P. BHATINDA.

4. ELECTRIC SUBSTATION A Substation is a part is of an electrical generation, transmission and distribution system. Substation transform voltage from high to low, or the reverse, or perform any of several other important function

5. CHARCTERISTICS OF SUBSTATION Voltage Step Up / Down Rectification from A.C. to D.C . Frequency Power Factor

6. ELEMENTS OF SUBSTATION Power Transformer Relay Bus-bar Lighting Arrestor Circuit breaker Capacitor bank D.C. b attery room Insulator Power line carrier communication Current transformer Potential transformer Power factor Isolator

7. REQUIREMENT OF GOOD SUBSTATION The Circuit should be so designed that failure chances become small . It should be possible that in case of fault, only faulty section is isolated and other section should work normally . It should be easy to Inspect and maintain each & every equipment component . Reactors may be used to limit short circuit current. Power Cables should be isolated from Central Cables. The Sub-Station should be kept neat & clean.

8. POWER TRANSFORMER It is a static device which transfer A.C. electric power from one circuit to other circuit at the same frequency. it is used to step-up or step-down the voltage . At all the Sub-station except at the generating station, step down transformer are employed.

9. Main parts of a power transformer Bushings Conservator tank Breather Oil tank Core Primary turn secondary turns

10. Testing of power transformer TTR Short circuit Open circuit Magnetic Balance Charging Current

11. Protection of power transformer Buchholz Relay

12. Relays A Relay is a device which detects the fault and supplies information to the circuit breaker for circuit interruption. According to Its Application Relays Are:- Over voltage & Over current relay. Under voltage relay. Directional Current relay. Differential Relay. Distance Relay Over current & earth fault relay.

13. POWER LINE CARRIER COMMUNICATION

14. Equipment used in PLC Wave Trap Coupling Capacitor

15. CURRENT TRANSFORMER

16. Main parts of current transformer Primary winding Secondary winding

17. Applications of current transformer For Measurement For Protection

18. ISOLATOR

19. INSULATORS Types of Insulator Pin Insulator Suspension Insulator Strain Insulator Shackle Insulator Egg Insulator

20. BUS BAR Indoor Bus Bar Outdoor Bus Bar

21. Bus Bar Arrangement Single Bus Bar Double Bus Bar

22. CIRCUIT BREAKER Types of circuit breaker Vacuum circuit Breaker Sulphur Hexafluoride circuit Breaker Air-Blast circuit Breaker Oil Circuit Breaker

23. SF6 CIRCUIT BREAKER

24. POTENTIAL TRANSFORMER

25. Main parts of Potential transformer Transformer core Primary turns Secondary turns

26. Applications of P.T P.T for protection P.T for measurement

27. LIGHTING ARRESTER

28. Application of lighting Arrester For Transformer protection For Bus Bar protection

29. BATTERY ROOM

30. CAPACITOR BANK

31. POWER FACTOR Power factor may be cosine the angle between voltage and current in an A.C. system . Types of power factor:- Unity power factor :- Lagging power factor :- Leading power factor :-

32. CAUSE OF LOW POWER FACTOR Transformers and electrodes are the inductive loads which the causes the current to lag behind the voltage, they operate at a legging power factor . The motor which we use in our industry are mainly induction motors having an inductive loads. Which causes low power factor . Arc camps, heating furnaces also operate at low power factor

33. POWER FACTOR IMPROVEMENT Synchronous condenser Capacitor bank

34. Thank you