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ABSTRACT:
The economics of generation of electrical energy and the huge demands of power in the modern times require creation bigger power plant . These may be hydro , thermal , atomic etc . The transmission network is inevitable . large and high voltage transmission lines are necessary to transmit huge blocks of power from the source of generation to load centers . In b/w the power plant and ultimate consumer a number of transmission and switching stations have to be created . This is done by SUBSTATION . This mini project discuss various equipments and protection of a 220kv/132kv/33kv,DAIRY FARM SUBSTATION.
SINGLE LINE DIAGRAM OF DAIRY FORM SUBSTATION:
100MVA,220KV/132KV AUTO TRANSFORMER(step down t/f):
ON LOAD TAP CHANGER:
TAPPINGS AND OTHER EQUIPMENTS IN OLTC:
CONSERVATOR (store oil) BUCHHOLZ RELAY(makes alarm or trips during during fault conditions:
RADIATORS(used for cooling purpose):
BREATHER & SILICA GEL (absorb moisture in air):
20/31.5KV AND 132KV/33KV STEP DOWN TRANSFORMER:
50MVA,132KV/33KV STEP DOWN POWER TRANSFORMER:
33KV TRANSFORMER:
SF6 CIRCUIT BREAKER:
LIGHTING ARRESTER & SURGA METER :
CAPACITOR VOLTAGE T/F& WAVE TRAPER:
CURRENT TRANSFORMER:
POTENTAIL TRANSFORMER:
Isolator:
FLOAT CHARGER & BOOST CHARGER:
BATTERIES(heart of the sub station):
CONTROL PANELS:
RELAY PANEL:
PROTECTION:
RELAY CHARACTERISTICS:
SENSITIVITY
SPEED
SELECTIVITY
RELIABILITY
BUCHHOLZ RELAY
CONCLUSION:
WE HAVE STUDIED THE VARIOUS EQUIPMENT AT 220KV/132KV/33KV DIARY FARM SUB STATION AND VARIOUS PROTECTIONS EMPLOYED FOR THEM.
WE LEARNED 1.SWITCH YARD EQUIPMENT
2.CONTROL ROOM

to get information about the topic Protection through switchyard equipment related topic refer the page link bellow

http://seminarsprojects.in/showthread.ph...6#pid51476

http://studentbank.in/report-switchyard-full-report

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