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Training report on 400 kV GSS
- 1. SUMMER PRACTICAL TRAINING REPORT AT 400kV GRID SUB-STATION (HEERAPURA, JAIPUR) SUBMITTED TO:- DEPARTMENT OF ELECTRICAL ENGINEERING JECRC, JAIPUR SUBMITTED BY:- PUNEET MANGHANI 13EJCEE080 BATCH: B-1
- 2. 400kV GRID SUB-STATION SESSION 2016
- 3. ABOUT 400kV GSS EASTABLISHED: 19 July 2000 by Govt. of Raj. CAPACITY: 250 MVA
- 4. INTRODUCTION Electric power is generated, transmitted and distributed in the form of AC. The electric power produced at the power station is delivered to the consumers through a large network of transmission and distribution.
- 5. SUBSTATION Main tasks of sub-station Fault analysis Voltage control Controlling the exchange of energy Protection of transmission system Reliable supply
- 6. ABSTRACT 400 kV INCOMING FEEDERS BASSI- 1 BASSI- 2 MERTA HINDOUN CITY 200 kV OUTGOING FEEDERS SANGANER SEZ PHULERA KTPS
- 7. CONTENTS Bus bars Isolators Insulators Circuit breakers Power transformers Control room Potential and current transformers Relays Lightning arrestors Battery room
- 8. BUS BARS • An electrical conductor that makes a common connection between several circuits Single main transfer scheme Single bus bar scheme Double main bus bar scheme
- 9. ISOLATORS • Isolators is a mechanical switch which isolates a part of circuit from system when required. • Types: i)Double break isolators ii)Single break isolators iii)Pantograph type isolators
- 10. INSULATORS • It provides insulation between the conductors and support and thus prevent any leakage current from conductor to earth. • Purpose: i)Support ii)Break the current • Types: i)Pin type insulators ii)Suspension type insulators iii)Strain type insulators
- 11. CIRCUIT BREAKER The main function of circuit breaker: i) It carries current continuously without heating ii) Opens or close the circuit when required. iii)It protects the circuit in case of any fault.
- 12. Types of circuit breaker: Vacuum circuit breaker SF6 circuit breaker Oil circuit breaker Air circuit breaker
- 13. Difference between Isolator and Circuit Breaker Isolator is an off-load device while circuit breaker is an on- load device. Isolator is a switch which is operated manually, separates the circuit from the power main and discharges the trapped charges in the circuit. Circuit breaker operates automatically, triggered by electromechanical mechanism inside and are a safety feature for abnormal and voltage in the circuit
- 14. POWER TRANSFORMER Transformers are used to transform voltage from one circuit to another without changing the frequency.
- 15. Types of power transformer: Step up transformer and step down transformer Single phase transformer and three phase transformer Electrical power transformer, distribution transformer an instrument transformer Two winding transformer and auto transformer Outdoor transformer and indoor transformer
- 16. LIGHTNING ARRESTER A lightning arrester is a device used on electrical power systems and telecommunications systems to protect the insulation and conductors of the system from the damaging effects of lightning. The typical lightning arrester has a high-voltage terminal and a ground terminal.
- 17. RELAYS A relay is an electrically operated switch which senses abnormal conditions of electrical circuit and closes its contacts. Many relays use an electromagnet to mechanically operate a switch
- 18. CONTROL ROOM
- 19. BATTERY ROOM A battery room is a room in a facility used to house batteries for backup or uninterruptible power systems.
- 20. CONCLUSION During my two months summer training I got the knowledge about transmission and distribution of the electrical power, about the equipment used, their arrangement and their working.
- 21. THANK YOU