Answer Posted / srinivas

yes

How we can calculate the life of Lead acid battery

1719

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what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

1465

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

744

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How eddy current generation support the idea of train braking?

1926

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What is essential to prove safe isolation of electrical circuit?

1028

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Transformer how to maintaince a check b check c check d check

2042

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What is the effect of positive feedback on stability of the system?

1583

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generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

1877

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What is force on a conductor in a magnetic field ?

1018

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Can we convert off line transformer to on line transformer

1938

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what is load despatching

2156

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

1946

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Why do we use center tap transformer that used with portable tools

2213

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How many size of cable required for a 300m long and 30kw inductive lode

1257

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how to maintain frenquncy with syncronising sub-station for distribution

2072

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