ppt of 132kv gss sitapura jaipur
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Ppt of 132kv gss sitapura jaipurTRANSCRIPT
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A PRESENTATIONON
132 KV GRID SUBSTATIONSITAPURA ,JAIPUR
Presented ToMs. Meesha Goyal EE Department
Presented ByKishan Kumar YadavSection A2SGVU111055594
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RAJASTHAN RAJYA VIDYUT PRASARANNIGAM LIMITED (R.R.V.P.N.L)
R.R.V.P.N.L is a company of Rajasthan State
Electricity Board (RSEB) established by
Government of Rajasthan.
Aim of R.R.V.P.N.L is to provide reliable mission
service to customers.
132 KV G.S.S, Sitapura (JAIPUR) is a part of R.R.V.P.N.L.
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CONTENTS:1.SUB STATIONS
2. LIGHTNING ARRESTER
3. BUS BAR
4.WAVE TRAP
5.TRANSFORMER
CURRENT TRANSFORMER
POTENTIAL TRANSFORMER
POWER TRANSFORMER
STATION TRANSFORMER
6. TRANSFORMER COOLING
7. ISOLATOR
8. CIRCUIT BREAKER
9. PROTECTIVE RELAY
10. INSULATORS
11. POWER LINE CARRIER
COMMUNICATION
12. CAPACITOR BANK
13. CONTROL ROOM
14. BATTERY ROOM
15. SINGLE LINE DIAGRAM
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1. SUBSTATION
A Station is a subsidiary station of an electricity generation, transmission,&
distribution system where voltage is transformed to high to low or the reverse
using transformers.
A substation generally have switching, protection, & control equipment & one or more transformers.
CONSTRUCTIONAL FEATURES OF 132KV GSS SITAPURA,
• In this substation the power is coming from two lines namely
• 132 KV INDIRA GANDHI NAGAR
• 132 KV SANGANER
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Outgoing feeders are
• 33 KV NRI
• 33 KV SITAPURA
• 33 KV PRATAP NAGAR
• 33 KV MICO
• 33 KV TIJARIA
• 33 KV STONE MART
• 33 KV SEZ I
• 33 KV SEZ II
• 33 KV RAMCHANDRAPURA
• 33 KV GONER
• 33 KV PRATAP APARTMENT
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132 KV Yard -
33 KV Yard
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2. LIGHTNING ARRESTER
Lightning arrester is a protective
device which provides protection
against high voltage from lightning.
A Lightning arrester has two
terminal viz a high voltage terminal
and a ground terminal.
It is used only for overhead line.
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3. BUS BAR• A Bus bar is a conducting bar that carries heavy currents to supply several electric circuits.
• Bus bar is made from ‘Cu’ and ‘Al’.
TYPES OF BUS BAR-
1. Main Bus Bar2. Auxiliary Bus Bar
• One Bus Bar is Main Bus Bar and another is Auxiliary Bus Bar.
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4. TRANSFORMER
A Transformer is a static device that transfers Electrical energy from
one Electrical circuit to another Electrical circuit by means of a
common Magnetic Circuit.
TRANSFORMER USED IN GSS
POWER X-MER
C.T.
P.T.
STATION X-MER
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o POWER TRANSFORMER•To step-down the voltage and transfer power from one A.C voltage to another A.C Voltage at same frequency.
MAIN PARTS OF POWER TRANSFORMER-Winding(H.V winding , I.V winding) Core Tap changerConservator Tank Buchholz Relay Dehydrating BreatherOil Temperature Indicator Winding Temperature Indicator
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oCURRENT TRANSFORMER
Current Transformer is an instrument transformer used to protection & Metering of high values of current.
Current Transformer:- A C.T is used to step down current for measurement, control and protection.
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oPOTENTIAL TRANSFORMER
Potential Transformer:- Potential Transformer are Instrument Transformer. A P.T is used to step down voltage for measurement, control and protection.
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C.V.T. :- CVTs are special king of PTs using capacitors to step down the voltage. A capacitor voltage transformer (CVT), or capacitance coupled voltage transformer (CCVT) is a transformer used in power systems to step down extra high voltage signals and provide a low voltage signal, for measurement or to operate a protective relay
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5.TRANSFORMER COOLING
ONAN
Oil natural air natural
ONAF
Oil natural air forced
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6. 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.
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7. CIRCUIT BREAKER
A Circuit Breaker is an automatically or manually operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
TYPES OF CIRCUIT BREAKER- which is used in 132kv GSS sitapura
SF6 Circuit Breakers
Vacuum Circuit Breakers
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SF6 C.B.
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8. PROTECTIVE RELAYS
• Protective Relay is a sensing device and it is designed to detect operating conditions on an electric circuit.
• It trips the circuit breaker, when fault is detected.
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9. INSULATORSIn order to avoid current leakage to the Earth, through the supporting structure provide to the conductor of overhead transmission lines, insulators are used.
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10. POWER LINE CARRIER COMMUNICATION
•For exchange of data and transfer message between grind substation , Voice communication is necessary. For this purpose high frequency Carrier current is transmitted on same transmission line on which power is transmitted.
Hence such communication is called-“POWER LINE CARRIER COMMUNICATION”.
.
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Capacitor banks are used to improve the quality of the electrical supply and the efficient operation of the power system. Studies show that a flat voltage profile on the system can significantly reduce line losses.
11. CAPACITOR BANK
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To remote control of power switch gear requires the provision of suitable control plates located at a suitable point remote from immediate vicinity of CB’s and other equipment.
12. CONTROL ROOM
C & R PANEL
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In a GSS, Separate dc supply is maintained for signaling remote position control, alarm circuit etc. There is a battery room which has 55 batteries of 2 volt.
13. BATTERY ROOM & CHARGER
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Thank you