Answer Posted / elaya

Reactor is a device like capacitor.which is normally
connected on high voltage swithchyard maximum 400kV in the
account of compensate reactive power on station in during
night hours (low power supply-due to industrial shut down
at night). we can classify it into two types 1.Switched
reactor 2.non swithched reactor.

simply it is power compensating device.

explain different losses in a transformer.

1059

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In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

3249

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what is the difference between rectifier and converter and commudator?

1890

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How many kinds of E.L.C.B and how to work E.L.C.B

1974

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is it possible to start a motor in felid connected to a remote mcc

1867

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If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?

2144

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how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer

2158

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Define delay time.

1038

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Explain about 3 phase motor fault current calculation with examples?

2875

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What is the role of Dedicated earthing in UPS System?

3043

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What is Load sharing of Transformer ?

1986

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list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

1923

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What happens if i apply 500V to 440V rotary Switch ?

1785

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I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400

1774

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How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.

2094

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