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 20 Anuncio
Anuncio

Más Contenido Relacionado

Presentaciones para usted (20)

Anuncio

Similares a 132 kv gss (20)

Anuncio

Más reciente (20)

132 kv gss

  1. 1. Jaipur National University, Jaipur A presentation on 132 KV Grid Sub-Station By Rajneesh Budania
  2. 2. Rajasthan Rajya Vidyut Prasaran Nigam Limited (RVPNL) Rajasthan Rajya Vidyut Prasaran Nigam Limited (RVPNL) is a company of Rajasthan State Electricity Board (RSEB) established by government of Rajasthan. Aim of RVPNL is to provide reliable Xmission service to customers. 132 KV G.S.S., Bhadra (Hanumangarh) is a part of RVPNL and power comes from SSTPS.
  3. 3. Components of A Sub-Station 1.Primary power lines 2.Ground wire 3.Overhead lines 4.Transformer for measurement of electric voltage 5.Disconnect switch 6.Circuit breaker 7.Current transformer 8.Lightning arrester 9.Main transformer 10.Control building 11.Security fence 12.Secondary power lines
  4. 4. Sequence of Components
  5. 5. Lightning Arrester (L.A.) Lightning Arrester is a protective device which provides protection against high voltage surges. A lightning arrester has two terminals viz a high voltage terminal and a ground terminal.
  6. 6. Lightning Arrester
  7. 7. Schematic Circuit of L.A.
  8. 8. Capacitive Voltage Transformer
  9. 9. Wave Trap (Line Trap)
  10. 10. Power Line Carrier Communication For exchange of data and transfer of messages between substations, voice communication is necessary. For this purpose high frequency carrier current is transmitted over same transmission line on which power is transmitted. Hence this communication is called as power line carrier communication .
  11. 11. Schematic diagram of P.L.C.C.
  12. 12. Isolator It isolates the devices from live line when there is a maintenance. It operates when there is no load.It is also used to change bus bar line from main to reserve or vice versa.
  13. 13. Current Transformer (C.T.) Current Transformer is used to measure high value of current. C.T. ‘s secondary is connected to relay to protect the system against overcurrents.
  14. 14. Circuit Breaker Today, two most popular circuit breakers are used in sub-stations which are: Vacuum Circuit Breaker & SF6 Circuit Breaker. Oil and Air Blast circuit breaker was used in earlier decades.
  15. 15. Bus Bar It is a metallic bar which has high current carrying capability. Bus bar is made from ‘Cu’ and ‘Al’. Its function is to carry electricity from line to switchyard or vice-versa.
  16. 16. Power Transformer Transformer is a static device that transfers electrical energy from one electric circuit to another electric circuit by means of a common magnetic circuit. Transformer can link two or more electric circuits.
  17. 17. Main Parts of Power Transformer (a) Core (b) Windings (H.V. winding, I.V. winding & L.V. winding) (c) Tap changer (d) Main tank (e) Conservator Tank (f) Buchholz Relay (g) Dehydrating Breather (h) Oil Temperature Indicator (i) Winding Temperature Indicator
  18. 18. Oil Cooling Arrangement
  19. 19. Protective Relays Protective Relay is a sensing device and is designed to detect operating conditions on an electric circuit. It trips the circuit breaker when fault is detected.
  20. 20. Thank You

×