Answer Posted / ullas k prabhu

RMS Value of any quantity =
(Max. value of the quantity)/1.414

100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

2424

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What is the difference between electronic regulator and ordinary rheostat regulator for fans?

1087

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1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

2594

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How two nos. 130 kw D.C motor get synchronise using D.C drive.

2189

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Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?

2400

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if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1919

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What is a single phase autotransformer?

1150

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reason of diode failure in alternator

1917

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can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

2189

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star delta starter contorl circuit... drawing..

2142

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explain single phase series motor

1994

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WHAT IS THE PARTIAL DISCHARGE TEST?

2174

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What is the difference between a 3 winding and 2 winding Potential Transformer

2337

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How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?

1886

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Name the component u would expect to find in a switchgear assembly?

2083

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