presentation of cspdcl urla raipur

1. VOCATIONAL TRAINING
ON
CHHATTISGARH STATE POWER DISTRIBUTION CORPORATION Ltd.
URLA RAIPUR
KAMAL SINGH 3162514063
UNDER THE GUIDANCE OF
MR;- KRISHNA KUMAR
(ASSISTANT ENGINNER CSEB URLA RAIPUR))
Department of Electrical & Electronics Engineering
Government Engineering Collage Raipur
Old dhamtari Road ,sejbahar ,Raipur ,Chhattisgarh ,India -492015
Phone -0771-2103157,Website –www.gecraipur.ac .in
Email-principal@gecraipur.ac .in
Session : 2017-2018

2. CONTENT
• INTRODUCTION
• SUBSTATION DAIGRAM & LAYOUT
• PARTS OF SUBSTATION
• PROTECTION OF SUBSTATION

3. CSPDCL URLA RAIPUR 132/33 KV
Supply comes from birgaon 132kv
and another which comes from
220kv urla Raipur
It has five feeder they are as follows
• MP metal
• Gondwara
• Banshi
• Perfect
• Rural
It has one 5MVA transformer and
their 5MVA

4. PARTS OF SUB STATION
Station battery Transformer
Lightning arrester Circuit breaker
• Station battery
• Transformer
• Lightning arrester
• Circuit breaker

5. • Current transformer
• Bus bar
• Insulator
• Capacitor bank
Current transformer
Isolator’s
Bus bar Capacitor bank

6. TRANSFORMER
Parts of transformer
• Breather
• Buchholz relay
• Conservator tank
• Oil level indicator
• Oil and winding temperature
indicator
• LV and HV bushings
• Radiators
Figure – transformer

7. Relay
Fig. Relay
• The relays detect the fault and supply the
information to the circuit breaker.
• When a failure occurs on any part of the
system, it must be quickly detected and
disconnected from the system.
• For high voltage circuits relays are employed
to serve the desired function of automatic
protective gear.

8. CURRENT TRANSFORMER
• a current transformer (CT) is an electric
device that produces an ac current in its
secondary which is propositional to the ac
current in its primary. When a current is
too high to measure directly or the voltage
of the circuit is too high a current
transformer can be used to provide an
isolated lower current in its secondary

9. CIRCUIT BREAKER
• Vacuum circuit breaker –A vacuum circuit
breaker is such kind of circuit breaker where
the arc quenching takes place vacuum .it is
suitable for medium voltage application

10. ISOLATOR
• In electrical engineering, a disconnector , disconnect
switch or isolator switch is used to ensure that an
electrical circuit is completely de-energized for service or
maintenance.
• High-voltage isolation switches are used in electrical
substations to allow isolation of apparatus such as circuit
breakers, transformers, and transmission lines, for
maintenance.
• Disconnector can be operated either manually or
automatically (motorized disconnector).
• Isolators are operated in OFF load condition.

11. The conductor carrying
current and having multiple
numbers of incoming and
outgoing line connections
can be called as a bus bar.
Which is commonly used in
substation
BUS BAR

12. LIGHTENING ARRESTER
Lightening arrester is the
instrument that are used in the
incoming feeder to prevent high
voltage entering the main
substation. This high voltage is
very dangerous used in the
substation. The instruments are
very costly so to prevent any
damage lightening arresters are
used.

13. INSULATOR
Insulator
Insulator is an element
which opposes the flow of
current or stops current. It
used extensively in
distribution & transmission.
It stops current to flow
through electrical poles

14. CAPACITOR BANK
• a capacitor bank is a grouping of several
identical capacitor interconnected in
parallel or in series with another as
required. For improving the power factor of
the system capacitor bank are used because
if power factor is low the value of current is
high and this is dangerous for the system so
improving of power factor is very necessary.

15. THANK YOU