What is the need of ISOLATION Transformer?

1 Answers  

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what is mean by marshalling box in transformer?

8 Answers   Reliance,

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1.what is difference in maintain Hz again Hz in USA ? 2.how to calculate the battery AH? 3.why are yearly maintained in transformer how many tests in required?

0 Answers   Areva, Google,

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What is reactive power?

7 Answers   Suzlon,

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How to find ampere on ht side for selection of cable size ???

0 Answers  

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-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

0 Answers  

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is it possible to step down voltage of single phase from a three phase sysem? explain

2 Answers  

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What is the value of specific gravity in charged lead acid batteries.

11 Answers  

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The corona effect is more in a) summer b) winter c) dry weather d) humidity weather

10 Answers   CPCL,

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why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

0 Answers   HCL,

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how can we connect a distance relay to CT core that is for backup protection or metering?

1 Answers  

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11 KV Power cable end earth connection insulation got burned wht is the reson pl give the resons

2 Answers  

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