Answer Posted / balaji

phase to neutral

hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u

2017

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specify the inbuilt protections in DG

2073

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Explain Circuit Breaker Trip Characteristics in detail.

2138

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draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it

2721

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While testing a ZCT what parameters have to check or measure?

2399

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briefly explain principle of resistance welding

1854

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why does connected a indutor with mnsformeretering core of current transformer ?

2141

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If any cable burnt how can we identify it burnt by high current of high voltage? 

2455

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what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

4561

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What conditions are required for transformer to operate at low frequencies ?

2012

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I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400

1819

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what is the terminal voltage of dc series generator running at rated speed at no load?

7639

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What is called limb of a transformer?

1050

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300m long and 30kw inductive loade 3phase supply how many size cable required

1442

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what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

2363

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