what is the function of a commutator in a dc generator?

14 Answers   College School Exams Tests, NTPC, TCS,

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How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

1 Answers  

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what is trip circuit supervision relay? How does it work in switchgear?

6 Answers   Radha Regent Hotels,

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Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

0 Answers   DAE,

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what is meant by dielectirc medium? what is the dielectirc value of air and water???

2 Answers   ISRO,

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Hello friends, Can anyone explain the concept of zones in Bus bar protection and how can we differentiate the main zone and check zone in Bus bar protection

1 Answers   ABB, NCC,

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How to select Main CB Rating for 220 KW Load?

3 Answers   Voltech,

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We are having Chemical earthing pit the voltage between neutral to earth showing 22V how to solve that

4 Answers  

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How much ampere rating on LT side of distribution transformer and also on HT side of 200KVA transformer

2 Answers   ABB,

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what is power ratio between star & delta connection of 3 phase induction motor

1 Answers  

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how to remover corona effect and hysteresis losses from contactor

0 Answers  

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If I have a LT panel 3ph, 415V, 50Hz which demand load-600kw, how we can calculate its body earth strip size.

1 Answers  

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