How we select the vector group of 3phase power transformer?

0 Answers   wbsedcl,

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Why can't we parallel Voltage transformer secondary circuits?

0 Answers  

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what is model question rrb junior engineer electrical gr.II

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how rated the neutral voltage of transformer and reactor, e.g. 400/220, 200MVA transformer have neutral voltage of 33kv. and reactor voltage 145kv. how this rating decided?

1 Answers   MEIL,

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why does same amount of current flow in the circuit inspite of any number of resistances in the circuit?

3 Answers  

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if we want to convert the two 12 V DC batteries in parallel for UPS ? what would be the result ? which is better for a UPS , connect two batteries in series or connect them in parallel ?

2 Answers  

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different types of electrical cable?

1 Answers   Green Power,

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What will be the current if the resistance total in a series circuit doubles?

0 Answers  

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We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?

0 Answers   Bhel,

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I want to know what must the CT ratio be on a load of 300A is a 3PH nutral to earh installation?

4 Answers  

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explain single phase series motor

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3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

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