Why HT cable have only 3 core ?
Answer Posted / sameer sane
Its very much economical to transmit power by using delta
connections since for very large distances, neutral need
not be used.
Is This Answer Correct ? | 4 Yes | 7 No |
Post New Answer View All Answers
What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?
Define open loop control system.
How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?
Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.
write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.
WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.
What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating
Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?
Why mostly the HV side of transformer has Delta?
what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors
Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected
What is sensitivity of a measurement?
i applied for the ap transco please forward the freqventley asked QA
what are the difference between AC lamp and DC lamp