presentation on industrial training from Power transmission corporation uttarakhand ltd. 132 kv susbsation laltappar dehradun

1. PRESENTATION
ON
INDUSTRIAL TRAINING
FROM
PTCUL 132 KV SUBSTATION, LAL TAPPAR DEHRADUN
PRESENTED BY-
SURENDRA SINGH RAWAT
EE, FINAL YEAR
ROLL NO.- 55
1

2. CONTENTS
 Single Line Diagram(SLD)
 Major Parts of Substation
• Switchyard
• Control Room
• Battery Room
 Reference
2

3. Detailed SLD
3

4. Generalise SLD of 132kv/33kv Substation
LA
CVT
WAVE TRAP
CT
LINE ISOLATOR
BUS ISOLATOR
CB
CVT
WAVE TRAP
CT
LINE ISOLATOR
BUS ISOLATOR
CB
LA
INCOMINGLINEFROMRISHIKESH
OUTGOINGLINETOMAJRA
132 KV BUS BAR
33 KV BUS BAR
FEEDER6
FEEDER5
FEEDER4
FEEDER3
FEEDER2
FEEDER1
CVT
LA
CT
ISOLATOR
CB
ISOLATOR
132/33 KV STEP DOWN TRANSFORMER
132/33 KV STEP DOWN TRANSFORMER
ISOLATOR
ISOLATOR
CB
CT
CVT
LA
ISOLATOR ISOLATOR
4
T/F-1
B.C.
T/F-2

5.  Protects the equipments of
substation against high voltage
surges.
 Directly grounds the very high
voltage.
5
COMPONENTS OF SUBSTATION
 SURGE ARRESTORS

6.  Potential transformers
 Capacitor voltage transformers
6
 INSTRUMENT TRANSFORMERS

7.  Current transformers
7

8.  Parallel resonant circuit
 Connected in series with T.L.
 High frequency stopper
8
 WAVE TRAP OR LINE TRAP

9. 9
 ISOLATORS

10.  SF6 circuit breaker
RATED VOLTAGE 145KV
RATED NORMAL CURRENT 2000A
RATED SHORT-CIRCUIT BREAKING CURRENT 40KA
RATED FREQUENCY 50 HZ
RATED MAKING CAPACITY 100 KA
GAS WT. 7.5Kg
TOTAL WT. 1450Kg
10
 CIRCUIT BREAKER

11.  Vacuum circuit breaker
RATED VOLTAGE 36KV
RATED CURRENT 1600A
FREQUENCY 50Hz
S.C BREAKING CURRENT 25KA
S.C MAKING CURRENT 65KA
S.C WITHSTAND CURRENT AND DURATION 25KA , 3sec
11
 CIRCUIT BREAKER

12. 12
 TRANSFORMER

13.  Ratings of transformer
MVA 24/40
VOLTAGE-KV 132/33
TEMPERATURE RISE IN OIL 50 deg. C
TEMPERATURE RISE IN WINDINGS 55 deg. C
TYPES OF COOLING ONAN/ONAF
CORE AND WINDING 38,000Kg
TANK AND FITTING 17,000Kg
OIL WEIGHT 18,000Kg
TOTAL WEIGHT 75,000Kg
FREQUENCY 50 HZ
HV Amps. 104.972/174.955
LV Amps. 419.9/699.2
13

14. 14
CONTROL ROOM

15. 15
CONTROL ROOM

16. 16
 RELAYS
RESTRICTED EARTH FAULT RELAY BUCHHOLZ RELAY

17. 17
OVER CURRENT AND EARTH FAULT RELAY DIFFERENTIAL RELAY
 RELAYS
DISTANCE RELAY

18. 18
 METERING AND MONITORING
 Ammeters
 Voltmeters
 Watt meters
 3 phase energy meters
 VAR meters
 Temperature indicator
 Alarm and annunciator panel
 Fire alarm annunciator

19. 19
 METERING AND MONITORING

20. 20
 Two group of batteries: 48V and 110V.
 Ni-Cd batteries
 Sulphuric acid used as electrolyte.
 Each battery has: 2Volts and 500Ah
BATTERY ROOM

21.  http://www.ptcul.org
 http://www.electricalindia.in/blog
 Power system Protection and Switchgear by Badri Ram and D.N.Vishwakarma.
21
REFERENCES