APRESENTATION

ON

Submitted To:- Mr. Sanjeev Kumar Rajoria Electrical Dept.

132 KV G.S.S.(SITAPURA)

Submitted By:- Mirza Sarmad Baig 13EGCEE057

Department Of Electrical EngineeringGLOBAL COLLEGE OF TECHNOLOGY

2013-2017

RRVPNL(An Organization)

▪ Rajasthan Rajya Vidyut Prasaran Nigam Limited (RVPN) a company under the Companies Act, 1956 and its Registered Office is at VIDYUT BHAWAN, JYOTI NAGAR, JAIPUR-302005 has been established on 19 July, 2000 by Govt. of Rajasthan.

▪ 132KV GSS Sitapura(Jaipur) come under the company of RRVPNL.

Its aim is to provide reliable electric transmission service to the customers.

Contents:-▪An Overview▪Working ▪Components▪Conclusion

OVERVIEWG.S.S. – GRID SUB STATION

• WHAT• HOW

WHAT IS G.S.S.?• A substation is a large installation of transformers to change voltage

levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages.

• Transmission System• Distribution system

132KV GSS Sitapura Yard 33KV GSS Sitapura yard

STRUCTURE OF G.S.S.(SITAPURA)

INCOMING LINES132 kV INDRA GANDHI NAGAR132KV SANGANER

OUTGOING LINES33 KV NRI33 KV SITAPURA33 KV PRATAP NAGR33 KV MICO33 KV TIJARIA33 KV STONE MART….. Many more.

COMPONENTS

LIGHTINING ARRESTER

POWERTRANSFORMER

S

POTENTIALTRANSFORMER

SBUS BARS

CURRENT TRANSFORMER

S

CONTROL ROOM

CIRCUIT BREAKER

S

CAPACITIVE VOLTAGE

TRANSFORMERS

PROTECTIVE RELAY

BATTERY ROOM

PLCC WAVETRAP

ISOLATORS

POWER TRANSFORMERSTEP-UP & STEP-DOWN

PARTSPRIMARY & SECONDARY WINDING

COREBUCHHOLZ RELAY

CONSERVATOR TANKOIL LEVEL INDICATOR

RADIATOR

RATING3-F,2-WINDING, 132/33KV

40/50 MVA.

CURRENT TRANSFORMERPOTENTIAL TRANSFORMER

RATING(1000/1) 132KV

(250/5) 33KV

CURRENT TRANSFORMER

POTENTIAL TRANSFORMER

RATING FOR 33 KV BAY

LIGHTINING ARRESTER

PROTECTIVE

DEVICE

CAPACITIVE VOLTAGE TRANSFORMER

CAPACITIVE VOLTAGE TRANSFORMER

SPECIFICATIONS

INSULATION LEVEL : 460KVPRIMARY VOLTAGE : 132/1.732KV

SECONDARY VOLTAGE : 33/1.732KVWEIGHT : 850 KG

Transformer used to step down extra high voltage and

supply low voltage

CIRCUIT BREAKER

• ELECTRICAL SWITCH • PROTECTION PURPOSE

SF6 C.B.

SPECIFICATIONS

RATED VOLTAGE : 145 KVRATED CURRENT : 2000 A

RATED SHORT CIRCUIT CURRENT TIME DURATION : 3 sec

RATED SF6 GAS PRESSURE : 7 barRATED AIR PRESSURRE : 20 barMAXIMUM WEIGHT : 1750 Kg

TYPES OF CIRCUIT BREAKER

• AIR BLAST CIRCUIT BREAKER• OIL CIRCUIT BREAKER• SF6 CIRCUIT BREAKER• VACCUM CIRCUIT BREAKER

• High dielectric strength

• Unique arc quenching ability

• Excellent thermal stability

• Good thermal conductivity

ADVANTAGES OF SF6

WORKING

ISOLATORS

• SWITCH• ISOLATE CIRCUIT

SPECIFICATIONS145 KV, 800A

RELAY

Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal.

Trips circuit breaker when fault is detected

CIRCUIT

RELAY

RELAY

FOR INFORMATION TRANSFER THROUGH CONDUCTOR.FOR ELECTRIC POWER TRANSMISSION.

ADVANTAGES:-• No separate power are require for transmission purpose.• They have high mechanical strength.• Provide shortest distance through power stations.DISADVANTAGES:-• Proper care has to be taken to guard carrier equipment.• Noise introduced in power line is much more than the telephone lines.

PLCC(POWER LINE CARRIER COMMUNICATION)

WAVE TRAP

• TRAPS FREQUENCY OF

DESIRED LEVEL FOR COMMUNICATION

BUS BARSBUS CARRY HEAVY CURRENT

PANTHER CONDUCTORSZEBRA CONDUCTORS

FOR 132KV.

CAPACITOR BANKS

• Improve the quality of electrical systems.• Make the operations more efficient.

• Reduce line losses.

BATTERY ROOM

• 55 BATTERIES OF 2V.

• FOR EXTERNAL CIRCUITS.

CONTROL ROOM• Increase reliability and performance of electrical protection.• Remote switching and advanced supervisory control.• Intelligent load shedding system.

SINGLE LINE DIAGRAM OF

G.S.S. (Working)

CONCLUSION

The training at substation was very helpful. It has

increased my theoretical knowledge about power

transmission and distribution.

Maintenance and protection of various circuit

equipment's.

THANK YOU

“SAVE TODAY – USE TOMMOROW”