A PPT ON 220 KV GSS SIROHI. PRESENTED BY: Dashrath singh panwar

2.  Improvement of Reliability
 Improvement of Economics
 Improvement of efficiency
 Improvement of security & safety
 Controller of entire power system

3.  Control Panel Section
 Relay and Protection Panel Section
 220 kv Section
 132kv Section
 33kv Section

4. Panel Section
 It is a room which contains all types of panels.
 It has two sections:-
 Control Panel Section
It contain panels related to controlling of instruments, E.g.:- Feeder panel,
X-mer panel, etc.
 Relay And Protection Panel Section
It contains panels related to relay systems and proction system.
E.g.:- Relay panel, line protection panel, etc.

5. Switch Yard
 It is the field where components used in controlling
supply and measuring supply (incoming and outgoing)
are placed.
 Some of these components are:-

6. 220 KV Incoming
from Bali1&Bali2
LIGHTING
ARRESTORS
CVT
WAVE TRAP
CT
ISOLATORS with
EARTH SWITCH
CIRCUIT BREAKER LINE ISOLATOR BUS
PT with BUS
ISOLATOR ISOLATOR
CT
CB
LA
MAIN X-MER
LA with EARTH
SWITCH
CB
CT
ISOLATOR
PT with BUS
ISOLATOR
CAPACITOR
BANK
132 KV OUTPUT

8. EQUIPMENTS- LIGHTENING ARRESTOR

9.  Step down extra high voltage signals.
 Provide a low voltage signal.
 For MEASUREMENT of voltage.
 To operate a protective relay.

10.  Power line carrier communication.
 Exchange of data and transfer of
messages between substation.
 WAVE TRAP- Trapping the
unwanted waves.

11.  Used for completely DE-ENERGISED the electrical ckt.
For service or maintenance.
 Separate the circuit at NO LOAD CONDITION.

12. INSTRUMENT TRANSFORMERS
 Instrument transformers are used for measurement and protective
Application together with equipment Such as meters & relays.
 Types-
- Current Transformer - Potential Transformer

13. CIRCUIT BREAKER
 Automatically Operated ELECTRICAL SWITCH.
 Designed to protect the ckt. From overload or short ckt.
 Separate Healthy & faulty section of ckt.
 Operate at ON LOAD condition.

14. TYPES OF CIRCUIT BREAKER’S
OIL CIRCUIT BREAKER
AIR-BLAST CIRCUIT BREAKER
SF6 CIRCUIT BREAKER
VACUUM CIRCUIT BREAKER

15. BUS - BAR
 A bus bar is a conducting bar that carries heavy current to
supply several electrical circuits.
 Made up of copper rod or thin walled tubes.
 Types:-
- MAIN BUS BAR….
- AUXILIARY BUS BAR…

16. POWER TRANSFORMER
A static device.
Transfer power from one ckt. to another ckt.
No change in frequency.
Principle – FARADAY’S LAW of electromagnetic indication.
Types – 1.Step up X-MER (o/p voltage > i/p voltage)
2. Step down X-MER (o/p voltage < i/p voltage)

17. FIGURE OF POWER TRANSFORMER

18. PARTS OF TRANSFORMER
 Core
 Winding (H.V. Winding, L.V. Winding)
 X-MER Oils
 Pressure relief valve
 Breather
 Conservator
 Radiator
 Tap changer
 Tank

19. Protective Relays
 Protective Relay is a sensing
device and is designed to detect
operating condition on an
electric circuit.
 It trips the circuit breaker
when fault is detected.

20. BUCHHOLZ RELAY
 A gas actuated relay.
 It is installed in b/w the conservator and the main tank.

21. BATTERY ROOM
 DC battery shell be installed in the power house for
 Protection.
 Emergency power.
 Alarm and in indication.

22. SUMMARY OF EQUIPMENT’S
LIGHTINING
ARRESTER
TRANSFOR
MER
CIRCUIT
BREAKER
ISOLATORS
RELAYS
WAVE TRAP
CURRENT
VOLYAGE
TRANSFORMER

24. ANY