Answer / k.prakashchandra

More elongation due to tension

What is the purpose of REACTOR in GIS substation?

1 Answers  

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If we want the fan to consume less electricity at low speed, what do we have to do?

1 Answers  

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Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

0 Answers   Pride Hotels,

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In dc motor starter there is less voltage required for holding contactor that's may why it is called no volt coil. but in ac starter why holding contactor is called no volt coil.

2 Answers   JSW,

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State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

0 Answers   Jindal,

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Why field rheostat is kept in minimum position?

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Formula to calculate amps rating when we are having only the width & thickness of the coppper ?

2 Answers   BEL,

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Am i eligible to get electrical supervisor licence? As i did diploma as well as degree in Electrical Engg. in June 2011. Now i am working in 15 MW Power plant from 2 mnths. i belongs to Maharashtra.

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what are trouble functions of transformer?ex. prv trip,oltc,oti,wti.explain detail.

1 Answers  

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What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

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How can i calculate knee point voltage of 800/5A Current transformer?please explain me with suitable calculation?

2 Answers  

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1.What is captive power plant? 2.What is national grid?Give brief idea.

0 Answers  

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