Answer / mritunjay kumar

Earth cable used in earth system and Unearth cable used in unearth system. Unearth cable insulation thickness more than earth cable since unearth cable used in high voltage stress side. Basic difference between earth and unearth cable is thickness of insulation and voltage between earth and phase is equal.

What is electrical diversity factor in electrical installations?

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What is the formula to calculate the rating of power cable for three phase current.

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for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

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1.What is isolators and bus bars?give answer in details

2 Answers  

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in most industies hormonics present up to some level. what is limit ? and there effect?

4 Answers   Bhel,

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Define the "All - Day Efficiency" of a Transformer

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define regulation

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DG drop how much freqency at 100% load?

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difference bewteen reverse current and alternating current

0 Answers   ABB,

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which trsanmission is easy and cost effective AC or DC.

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There are 2 motors without name plate and terminal but one is DC motor and another is induction motor.How one can identify which one is DC and which one is AC motor?

6 Answers  

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