Se ha denunciado esta presentación.
Se está descargando tu SlideShare. ×
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Anuncio
Próximo SlideShare
132kV GSS ppt
132kV GSS ppt
Cargando en…3
×

Eche un vistazo a continuación

1 de 18 Anuncio
Anuncio

Más Contenido Relacionado

Presentaciones para usted (20)

Similares a GSS ppt (20)

Anuncio

Más reciente (20)

Anuncio

GSS ppt

  1. 1. GUIDED BY:- Mr. Deepak Somani Asst. Prof. EE PRESENTED BY:- Ravi kant Roll no. :-12ECOEE020 A TRAINING SEMINAR ON “GRID SUB-STATION” SESSION 2015-16 Bachelor of Technology In Electrical Engineering 1
  2. 2. CONTENTS SUBSTATION. TYPES OF SUB-STATION. SINGLE LINE DIAGRAM. EQUIPMENT. • Lightening Arrester. • Isolator. • CVT. • Instrument Transformer. a. Current Transformers. b. Potential Transformers. • Circuit Breaker. • Bus bars. • Transformer. • Protective Relaying. • DC Power Supply. 2
  3. 3. SUB-STATION • A substation is a part of an electrical generation, transmission and distribution system. Substations transform voltage from high to low or the reverse. • Then that voltage we use in our homes and industries etc. Fig. SUB-STATION 3
  4. 4. CLASSIFICATION OF SUB-STATION • ACCORDING TO SERVICE REQUIRMENT. a) Transformer sub-station. b) Switching sub-station. c) Power factor correction sub-station. d) Frequency changer sub-station. e) Converting sub-station. • ACCORDING TO CONSTRUCTIONAL FEATURE. a) Indoor sub-station. b) Outdoor sub-station. c) Underground sub-station. d) Pole-mounted sub-station. 4
  5. 5. SINGLE LINE DIAGRAM 5
  6. 6. EQUIPMENT OF SUB-STATION • Lightening Arrester. • Isolator. • CVT. • Instrument Transformer. a. Current Transformers. b. Potential Transformers. • Circuit Breaker. • Bus bars. • Transformer. • Protective Relaying • DC Power Supply 6
  7. 7. LIGHTENING ARRESTER • Lightening arrestors are the instrument that are used to prevent from lightening entering the main station. • It is also known as surge arrester. Fig. LIGHTENING ARRESTER 7
  8. 8. ISOLATORS • The use of isolators is to off the transformer and the other instrument in the line. • Isolators are used for maintenance whenever fault occur. • It is manually operated. Fig. ISOLATORS 8
  9. 9. CVT(CAPACITOR VOLTAGE TRANSFORMER) • A CVT is a transformer used in GSS to step-down extra high voltage and provide low voltage either for measurement or to operate a protective relay. Fig. CAPACITOR VOLTAGE TRANSFORMER 9
  10. 10. BUSBAR • BUSBAR is a term we use for a main bar or conductor carrying electric current to many connection. Fig. BUSBAR 10
  11. 11. INSTRUMENT TRANSFORMER • Current transformers are basically used to take the readings of the currents entering in the substation. • The other uses of this CT. a) Distance Protection. b) Backup Protection. c) Measurement. Fig. INSTRUMENT TRANSFORMER CURRENT TRANSFORMER 11
  12. 12. • The potential transformer uses for Measurement and Protection. • The main use of potential transformer is to measure the voltage through the Busbar. • There are two main parts in it. a) Measurement. b) Protection. POTENTIAL TRANSFORMER Fig. POTENTIAL TRANSFORMER 12
  13. 13. PROTECTIVE RELAYS • Relay is a device which sense the fault and send message signal to circuit breaker to trip the coil. • It used for transformer protection. Fig. PROTECTIVE RELAYS 13
  14. 14. CIRCUIT BREAKER • A circuit breaker is used to receive the fault message signal from the relay and trip the coil. TYPES:- a) AIR CIRCUIT BREAKER. b) OIL CIRCUIT BREAKER. c) VACCUM CIRCUIT BREAKER. d) SF6 CIRCUIT BREAKER. Fig. CIRCUIT BREAKER 14
  15. 15. TRANSFORMERS • Transformer is a static device by which Transform AC electrical power from one voltage level into other level by keeping same frequency. • Transformer used in GSS is called Power Transformer. Fig. TRANSFORMERS 15
  16. 16. DC POWER SUPPLY • DC power supply is used for operate Circuit Breaker and control room operation. • 110V dc power supply is used. Fig. DC POWER SUPPLY 16
  17. 17. GRID SUB-STATION AT A GLANCE 17
  18. 18. 18

×