Answer / binod

THE FOLLOWING TEST ARE THE MINIMUM REQUIRED BEFORE CHARGING
A TR.
1)short cicuit test
2)opencircuit test
3)insulation test
4)magnetic core blance test
5)tan delta test
6)transformer oilo B.D.Vtest
7)silicagel color test
8)w/t&o/t functioning test
9)buchhols contact operation test
10)prv working test

what is the contact resistance of vacume circuit breaker??

1 Answers  

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Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

1 Answers  

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what is the voltage equation of 240/12 v transformer??

1 Answers  

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What is TR of AC?

11 Answers   Carrier, Reliance,

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How many kinds of E.L.C.B and how to work E.L.C.B

0 Answers   Accenture,

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Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?

0 Answers  

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Can you use step up generator transformer of voltage ratio 16.5kv/420kv in place of step up generator transformer 15.75kv / 420 kv

1 Answers  

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Could explain briefly of over excitation in transformer.

2 Answers   NCC,

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why neutral can not used in three phase motor connection?

1 Answers   HSL,

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What the capacitor Current formula?, For 1 KVAr how amps its required? for using the KVAr for boosting the PF Design Calculation.( Eg: for 30 KVAr required how many KW?)

17 Answers   Alstom, Call Centre, EDC, HCL, Procon Engineers,

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what is meant by 3rd hormonics ?

0 Answers   VRVS,

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what do you mean by earth fault in transformer?

2 Answers   L&T, UPL,

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