Answer / kumar

i think isolator is an switchigns divces only but circuit
breaker is ony safety divces for ex any short circuit and
over current (reated current )that time circuit braker is
trip.

Two alternators say 1 & 2 are poised to parallel operation. But at the time of paralleing alternator 2 gets out of the system by tripping Earth fault relay. Please send me reply why this is happening?

2 Answers  

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can we use optical fibre to electrical power transmission ?

1 Answers  

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How to work E.L.C.B and how to connect in circuit.

0 Answers  

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what is cathodic protection and why it use in industries?

0 Answers  

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The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

1 Answers   Engineers India Limited,

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what is stray loss in transformer?

19 Answers   Vijai Electricals,

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1. Why transfomer reting in KVA and Motor in HP

11 Answers   AirIndia, Jindal, Mind Tree,

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can we amplify dc signals.how can it be done

4 Answers  

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what is phase to phase fault? what is line to line fault?

2 Answers   Phoenix Technologies,

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Why in Digital Megger for finding Insulation resistance,-ve is applied to core or conductor and +ve is applied to ground.

1 Answers   ACC,

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Explain the operation carried out in thermal power stations?

0 Answers  

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What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply

10 Answers   eLab, Hero Honda, NTPC, Suzlon, Teradyne,

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