ARYA INSTITUTE OF ENGINEERING AND TECHNOLOGY

1. SUMMER PRACTICAL TRAINING
AT
400 KV GRID SUB-STATION
(HEERAPURA JAIPUR)
SUBMITTED TO :-
Mr. Deepak Sharma
Head of Department of Electrical
Engineering
SUBMITTED BY:-
AMIT KUMAR
13EAIEE703
B.Tech. IV Yr. VII SEM

2. INTRODUCTION TO VANUE
ESTABLISHED
• On 19th July 2000 by Government
of Rajasthan
 CAPACITY
• 250MVA

3. A substation is a part of an
electrical generation,transmission
and distribution system. Substations
transform voltage from high to low, or
the reverse by the using of
transformers.
 ELECTRICAL SUBSTATION

4. ABSTRACT
 400kV INCOMING FEEDERS
 BASSI-I
 BASSI-II
 MERTA
 HINDON
 220kV OUTGOING FEEDERS
 SANGANER
 SEZ
 PHULERA
 KTPS

5. CONTENTS
 BUS BAR
 LIGHTENING ARRESTOR
 TRANSFORMER
 CURRENT TRANSFORMER
 POTENTIAL TRANSFORMER
 CAPACITOR VOLTAGE TRANSFORMER
 ISOLATOR
 INSULATORS
 CIRCUIT BREAKERS
 RELAYS
 POWER TRANSFORMER
 CONTROL ROOM

6.  LIGHTENING ARRESTER
• A lighting arresters or a
surge diverter is a
protective device which
conducts the high
voltages surges on the
ground.

7.  TRANSFORMER
 A transformer is an electrical device or
static device that transfers electrical
energy from one circuit to another
circuit through medium of magnetic
field and without change in frequency.

8.  CURRENT TRANSFORMER
• A current transformer
is used to measurement
of high current.
• A C.T used to step up
voltage for
measurement ,control
and protection.

9.  POTENTIAL TRANSFORMER
• A potential transformer
is a step down
transformer used along
with a low range
voltmeter for measuring
a high voltage.

10. A capacitor voltage transformer
(CVT) is a transformer used in
power systems to step-down
extra high voltage signals and
provide low voltage signals
either for measurement or to
operate a protective relay.
CAPACITOR VOLTAGE TRANSFORMER

11.  ISOLATORS
• Isolator is used to make sure that
an electrical circuit can be
completely de-energized for
service or maintenance.
• It operates on no load and on load
conditions.

12.  INSULATORS
The insulator serves two purposes
they support the conductors and
confine the current to the
conductors.
There are mainly four types of
insulator used as overhead
insulator like as :-
1. Pin Insulator
2. Suspension Insulator
3. Strain Insulator
4.Shackle insulator

13.  CIRCUIT BREAKERS
• As the name indicate
circuit breaker use to
break the circuit for
automatic switching
during abnormal
condition and when the
fault occur.
• classification of circuit
breaker :-
1. Oil circuit breaker
2. Air blast circuit breaker
3. SF-6 circuit breaker
4. Vacuum circuit breaker

14.  RELAY
A relay is automatic
device which senses
an abnormal
condition of
electrical circuit and
closed its contacts

15.  BUS BAR
Bus-bars are copper or
aluminum bars and operate at
constant voltage.
The incoming and outgoing
lines in a sub-station are
connected to the bus-bars.
the most commonly used
bus-bars arrangement in sub-
station are :-
1. Single bus bar
arrangement
2. Double bus-bar
arrangement

17.  CONTROL ROOM

18. THANK
S