Industrial Training Presentation on 220/132/33 KV Barahua Substation
1. A PRESENTATION ON
INDUSTRIAL SUMMER TRAINING
220/132/33 KV S/S BARAHUA GORAKHPUR
DEPARTMENT OF ELECTRICAL ENGINEERING
SUBMITTED TO : SUBMITTED BY :
MR. DEEPAK GUPTA SHUBHAM PATEL
ASSISTANT PROFESSOR E.E. – 4TH YEAR
ROLL NO. 1575120050
KIPM COLLEGE OF ENGINEERING AND TECHNOLOGY
GIDA , GORAKHPUR
2. CONTENT
INTRODUCTION
SUB-STATION PROFILE
INCOMING / OUTGOING
SUB-STATION
SELECTION OF SITE
COMPONENT OF S/S
SINGLE LINE DIAGRAM
CONCLUSION
REFERENCE
3. INTRODUCTION
Uttar Pradesh Power Corporation Limited (UPPCL) is
the company responsible for electricity transmission and
distribution within the Indian state of Uttar Pradesh .
The creation of Uttar Pradesh Power Corporation Ltd.
(UPPCL) on January 14, 2000.
UPPCL Barahua 220 KV substation was established in
1979.
UPPCL Barahua substation is basically contains two
substation one of 220/132 KV & other one of 132/33
KV.
7. SUB-STATION
A substation is a part of an electrical generation,
transmission, and distribution system.
The assembly of apparatus used to change some
characteristics (e.g. Voltage ac to dc freq. p.f. etc) of
electric supply is called sub-station.
Substations transform voltage from high to low, or the
reverse, or perform any of several other important
functions.
Between the generating station and consumer, electric
power may flow through several substations at different
voltage levels.
9. TYPES OF SUB-STATION
Substations may be described by their voltage
class, their applications within the power system.
1. Transmission substation
2. Distribution substation
3. Converter substation
10. SELECTION OF SITE
The site chosen should be as near to the load center as
possible.
It should be easily approachable by road or rail for
transportation of equipments.
Land should be fairly leveled to minimize development
cost.
Source of water should be as near to the site as possible.
This is because water is required for various construction
activities (especially civil works), earthing and for
drinking purposes etc.
The sub-station site should be as near to the town / city
but should be clear of public places, aerodromes, and
Military / police installations.
11. COMPONENT OF S/S
The equipment required for a transformer Sub-Station
depends upon the type of Sub-Station –
Bus-bar
Insulators
Circuit breaker
Instrument Transformer
Current Transformer
Voltage Transformer
Transformer
Lightening arrestors
Wave trap
12. Bus-bar:
The bus is a line in which the incoming feeders
come into and get into the instruments for further
step up or step down.
The first bus is used for putting the incoming
feeders in LA single line.
Insulators:
The insulator serves two purpose –
1. they support the conductor (or bus bar)
2. confine the current to the conductor.
The most commonly used material for the
manufactures of insulators is porcelain.
13. Transformer:
Transformer is a static machine, which transform
the potential of alternating current at same
frequency.
It means the transformer transforms the low voltage
into high voltage and high voltage into low voltage
at same frequency.
It works on the principle of static induction principle.
Fig.2. 220/132 KV 160 MVA Transformer at barahuwa sub-station
14. TYPES OF TRANSFORMER:
Power Transformer
Instrument Transformer
Auto Transformer
1. POWER TRANSFORMER:
Fig 3: 132/33 KV 40 MVA transformer at barahuwa sub-station
15. 2. INSTRUMENT TRANSFORMER:
There are two types of instrument transformer-
Current T/f
Potential T/f
CVT
1. Current Transformer:
A current transformer is essentially a step-down
transformer which steps-down the current in a
known ratio.
Current transformers are basically used to take the
readings of the currents entering the substation.
17. 2. Potential Transformer:
It is essentially a step – down transformer and step
down the voltage in known ratio.
Fig.5. Potential Transformer ( Voltage Transformer )
18. 3. C V T:
A capacitor voltage transformer (CVT ) is a
transformer used in power systems to step-down
extra high voltage signals .
It provide low voltage signals either for
measurement or to operate a protective relay.
Circuit breaker:
A circuit breaker is an equipment, which can open
or close a circuit under normal as well as fault
condition.
These circuit breaker breaks for a fault which can
damage other instrument in the station.
It is so designed that it can be operated manually
(or by remote control) under normal conditions and
automatically under fault condition.
22. CONCLUSION
The three wings of electrical system viz. generation,
transmission and distribution are connected to each
other and that too very perfectly.
Effective voltage control
Reliable supply by feeding the network at various
points
Fault analysis improvement in respective field
Establishment of economic load distribution
23. REFERENCES
IEEE Journals
Electrical Magazines
Substation Report of UPPCL
“Electrical Power System” by C.L. Wadhwa
“Electrical Power System” by D Daas
“Electrical Power Distribution System” by V.
Kamaraju
“Power system stability and control” by P Kundur
“Power system dynamics” by P Sauer and M A Pai
“Nonlinear Power Flow control design” by David G
Wilson