PPT on dausa 220 KV GSS

1. A
seminar on
Practical Training taken at
220KV GSS DAUSA
PRESENTED BY :
Student name
4th year, EE
(roll no.)
DEPARTMENT OF ELECTRICAL ENGINEERING
GOVERNMENT ENGINEERING COLLEGE,JHALAWAR
RAJASTHAN TECHNICAL UNIVERSITY,KOTA
SUBMITTED TO :
Mr. name of HOD
HOD Of Electrical Engg.
2017-18

2. 
Introduction
Definition Of sub-Station
Component Of sub-station
Lightning Arrestor
Capacitor voltage Transformer
PLCC
Isolater
Current Transformer
Circuit Breaker
Bus Bar
Transformer
Protective relay
Control room
Conclusion

3. RVPNL is a company of Rajasthan State Electricity
Board(RSEB) established by government of Rajasthan. Aim of
RVPNL is to provide reliable transmission service to customers.
220 KV G.S.S., Dausa is a part of RVPNL.
.

4. FEEDERS
OUTGOING FEEDERS
220 K.V.
SAWAI MADHOPUR
LALSOT
ALWAR
BASSI -1 (PGCIL)
BASSI -2 (PGCIL)
SIKRAI
MANDAWAR
132KV.
 BASSI
 BANDIKUI
 NAGAL PYARIWAS
 TOONGA

5. SINGLE LINE DIAGRAME 220KV GSS, DAUSA

6. 
Sub-station is a subsidiary station of an electric generation
,transmission and distribution system where voltage is
transformed from high to low or low to high voltage using
transformers. Electric Power may flow through several sub-
station between generated plant and consumer and may be
changed in voltage in several steps.

7. 
1. Primary power lines
2. Ground wire
3. Overhead lines
 Transformer for measurement of electric voltage
1. Disconnect switch
2. Circuit breaker
3. Current Transformer
4. Lightning arrester
5. Main Transformer
6. Control building
7. Security fence
8. Secondary power lines

8. 
Lightning arrester is a protective
 device which provides protection
 against high voltage surges. A
 lightning arrester has two terminals
 viz a high voltage terminal and
 a ground terminal.

9. 
 Capacitive
voltage
transformers are
special kind of
power transformers
using capacitors to
step down the
voltage.  capacitive
 voltage
 transformer

10. 
 Wave trap
 A Line trap (high-frequency
stopper) is a maintenance-free
inductor, mounted inline on
high
voltage AC transmission
power lines to prevent the
transmission of high
frequency (40 kHz to
1000 kHz) carrier signals
of line communication to
unwanted destinations.

11. 
PLCC for exchange of data and transfer of messages between
substations, voice communication is necessary. For this purpose
high frequency carrier current is transmitted over same
transmission line on which power is transmitted. Hence this
communication is called as power line carrier communication.

12. 
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
vise versa.
 220 KV ISOLATOR

13. 
C.T. is used to measure high
value of current. C.T.`s
secondary is connected to
relay to protect the system
against Overcurrent.
 Current
 Transformer

14. 
Circuit
breaker Today,
two most
popular Circuit
breakers are
used in
substation
which are:
Vacuum Circuit
breaker
 & SF6
Circuit breaker.
Oil and Air
blast Circuit
breaker was
used in earlier
decades.

15. 
Bus Bars are common
electrical component
through which a large
no. of feeders
operating at same
voltage have to be
connected.

16. 
The transformer is a static
apparatus, which receives
power/energy at it, one circuit
and transmits it to other circuit
without changing the
frequency and power.

17. 
1. Primary and secondary coils (circuit) or windings.
2. Core
3. Main Tank
4. Conservator
5. Breather
6. Radiator
7. Buchholz relay
8. Bushings (HT & LT) (Primary or secondary)
9. Cooling fans
10. Tap changer (on load and off load)
11. NGR (Neutral Grounding Resistance) to minimize the earth
fault current

18. 
 To step-up or step-down the
voltage and transfer power
from one a.c. voltage to
another a.c. voltage at the
same frequency.

19. 
The capacitor bank provides
reactive power at grid sub-station.the
voltage problem frequently reduce
so of circulation of reactive power.

20. A protective relay is a
device that detects the
fault and initiates the
operation of the circuit
breaker to isolator the
defective element from
the rest of the system.

21. 