Answer Posted / devang

when flux change the voltage induced on secondary side so
we can not use the transformer as dc value step-up-down so
for constant value of square the output zero but the
transformer has the storage energy so the enery decrease
with time constant for high value of time constant the
square value possible but less value of time constant the
squre value not possible

best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?

1661

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how you configure motorvision relay (L&T make)from DCS

4813

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why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

2194

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am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

1783

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To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

1912

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Why the cores of large transformers build up of circular cross section?

2226

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What are the different methodes for calculating the short circuit Current?

1986

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why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?

5502

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What are the various kind of cables used for transmission?

1043

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Why are iron cores in transformers made laminated?

1048

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The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

1656

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How can I known multiplying factor .without multiplying table

1743

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We have given to 3phase supply to ups system & how can coming netural

2095

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can we do the star delta connection of capacitor for 3- phase motor starter.

1977

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working principle a.v.r. ?

2340

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