what is the meaning of bus bar, in electrical panels.

13 Answers   HLG Habtoor Leighton Group,

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what is the voltage and ampere rating of all range of HT conductor?

1 Answers  

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What Should be the rating of transformer used in 33KV substation?

3 Answers  

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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

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how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt

2 Answers   ASD Lab,

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If we connect capacitor in series DC supply so what happened?

4 Answers  

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please send me RRB electrical engineer previous year questions for Sr. Section Engineer

0 Answers  

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which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter

0 Answers   Dalkia,

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why dont we connect the two 12 V DC batteries in parallel, for an inverter (UPS)? is there any harm ?

3 Answers  

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How damper winding in synchronous motor suppress Hunting?

2 Answers   Bhel,

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corona happens more in summer or winter?

3 Answers   MAHINDRA,

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How many types of Transformers are there?

8 Answers  

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