What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2 Answers   Asec,

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What is the function of trip neutral close switch?

11 Answers  

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What do you mean by ACB and VCB?

3 Answers   L&T,

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What is the advisble power factor to be maintained in grid connecting power generation plnats without any effecting the generator.

1 Answers  

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we have 3 phase 4 wire supply 230/415 V.AC and our distribution is single phase or we have all single phase 220 v,ac operated appliances. and noted the current with help of clamp meter Red to N = 20 Amps. Yellow to N = 45Amps and Blue to N = 30 Amps ( total is 95 Amps ) what will be neutral current on the main .

1 Answers   ABC,

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how do i calc busbar size for a rated current?

1 Answers  

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if we increase frequency of line, then how will string efficiency varies with it.

2 Answers  

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Can a 150 kva 3 phase,440v/230v delta-wye connection stepdown transformer can be used in reverse as a step up tranformer ?

3 Answers   Meralco,

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To have variable speeds we use a. Induction motor b. Traction motor c. Shunt motor

1 Answers  

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What is the working of SCM CT or purpose in genrator ?

3 Answers   Bhel,

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what is diff between Ground/Earth & Neutral?

4 Answers  

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what are the colour's and their indications in bucholz relay?

4 Answers  

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