why phase to phase voltage are 290 rather then 440?

1 Answers   Bosch,

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what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

0 Answers  

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Does dry and oil transformers both require dedicated neutral, because in my project we are using 2500kv dry star delta transformer, where they say neutral not required and even it is not provided in our substation. can u let me know

2 Answers   Voltas,

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Where double earthing is required? Is there any power specification to have double earthing?

10 Answers   Delphi,

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How much ampere rating on LT side of distribution transformer and also on HT side of 200KVA transformer

2 Answers   ABB,

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What is the reason of using bus-bars on the secondary on the LT transformers?

2 Answers  

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what the different types of cables used for 11kv and 33kv over head work and what is the size of cable in sqmm.

2 Answers   Ordnance Factories Board,

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explain single phase series motor

0 Answers  

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In generating stations which we generate current or voltage if it is voltage then how it will convert to current and power?

2 Answers   NIT,

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What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted

9 Answers   Bhel, Dubai Group,

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what is mean by dual digital protection in the relay field?

0 Answers   ABB,

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what will be the efficiency off x'mer during no load test and during short circuit test

1 Answers   GPSC Gujarat Public Service Commission,

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