jagdeesh ppt
TRANSCRIPT
132/33KV SUBSTATION RAJA KA TALAB VARANASI
SUBMITED BY- -JAGDEESH KUMAR MAURYA
1342220904E.E. 4th YEAR
BANSAL INSTITUTE OF ENGINEERING & TECHNOLOGY
LUCKNOWSUBMITED TO -
Mr. B.R. SINGHHOD OF E.E
132KV INCOMING
132KV INCOMING MANDUADIH, GAJOKHAR & AUARI
132KV INCOMING
132KV INCOMING MANDUADHI
LIGHTNING ARRESTORSLIGHTNING ARRESTORS
It is connected between line and earth so diverts the incoming high voltage wave to earth.
When a lightning surge travels along the power line to the arrester, the current from the surge is diverted through the arrestor in most cases to earth.
CURRENT TRANSFORMERS [C.T.] 400/200/100/1A
(BHEL)
CURRENT TRANSFORMERS
A Current transformer (CT) is used for measurement of alternating currents.
A Current transformer is 400amp to 1amp step up T/F . CT is connected in series with circuit.
BUS ISOLATOR
BUS ISOLATOR
The line through the Bus isolator is distributed in the substation main bus.
It is disconnects the circuit from the main power supply. Open the isolator on no load .
Vacuum CIRCUIT BREAKERS (CGL)
CIRCUIT BREAKERS
Circuit beaker used to protect the equipment by opening the circuit for
over current and over voltage. A circuit breaker which can open or close a circuit under normal as
well as faulty condition.
RELAY
When a short circuit occurs at any point on the transmission line the current flowing in the increases to the enormous value. This result in a heavy current flow through the relay coil, causing the to operate by closing its contacts
Main bus-bar
MAIN BUS BAR
ACSR moose conductor use in main bus bar and consist of a 54 wires in aluminium and 7wires in steel
POTENTIAL TRANSFORMERS [P.T.]
POTENTIAL TRANSFORMERS
A Potential transformer is used for measurement of voltage. PT is used in power system to step down extra high voltage and
provide a low voltage, for measurement or to operate a protective relay
TRANSFER BUS
TRANSFER BUS
It is used in ACSR conductor. It is transfer bus through supply in different -2 transformer
SF6 CIRCUIIT BREAKERS (ABB)
SF6 CIRCUIT BREAKERS
Sulfur hexafluoride (sf6) gas is used as the arc quenching Medium. The sf6 is an electronegative gas and has a strong tendency to
absorb free electrons. CB has developed for voltage 115kv to 230kv.
Vacuum circuit breaker
VACUUM CB
Vacuum circuit breakers are circuit breakers which are used to protect
medium and high voltage circuits from dangerous electrical situations
LINE ISOLATORS
LINE ISOLATORS
Line isolator is line side isolator
CURRENT TRANSFORMERS [C.T.] 400/200/100/1a
(BHEL)
CURRENT TRANSFORMERS
A Current transformer (CT) is used for measurement of alternating currents.
A Current transformer is 400amp to 1amp step up T/F . CT is connected in series with circuit.
post INSULATOR
LIGHTNING ARRESTORS
132/33 ADITYA TRANSFORMER
HV SIDE
63MVA 132/33 STAR-STAR T/F
CONSERVATOR TANK
BUCHHOLZ’S RELAY
SILICA GEL
132/33 ADITYA TRANSFORMER
COOLING FINSTAP CHANGER SWITCH
NUTRAL TERMINEL
Transformer is a heart of substations. These are used to reduce the voltages at appropriate levels. It is step down transformer.
LIGHTNING ARRESTORS
CIRCUIT BREAKERSCURRENT TRANSFORMERS[C.T.]
33kv busbar
33KV BUSBAR
33kv bus bar in connected in parallel operation in two transformer. one is 40MVA and 63MVA
33KV BUS WITH PARALLEL OPErATION IN 40MVA & 63MVA
33KV PIN INSULATOR
PARALLEL OPerATION
40 MVA 132/33 TRANSFORMER
LIGHTNING ARRESTORS
C.T.
LIGHTNING ARRESTORS
132/33 ,40MVA TRANSFORMER
COOLING FANS
132/33, 40MVA, BHARAT BIJALI transformer step down transformer.
It is connected in parallel operation. It is load share in parallel.
33KV OUTGOING VACUUM CB
33 KV OUTGOING
33kv 7 outgoing ROHANIA , ADALPURA , LOHTA, SEWAPURI, JAMUA ,
THATRA and JAKHANI.
10MVA 33/11 TRANSFORMERS
33/11 TRANSFORMERS
33/11 STEP DOWN TRANSFORMER .
wall
CAPACITOR BANK
CAPACITOR BANK
The load on the power system is varying being high during morning and low in evening which increases the load current. This result in the
decreased power factor. In order to improve the power factor come device taking leading
power should be connected in parallel with load . One of device can be capacitor bank.