Answer Posted / chandrasen mourya

Because most of the line used for transmission by EB are of
220 & 400kV . These lines are of lenght greater then 50 kms.
Due to which any arcing fault which is temp can trip the
line & total suhtdown. The 1p/3p trip with single shot or
multi shot AR is provided in 132kv & above.

what does a k rating in a transformer means?

2486

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

2378

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how desiel generate sart fail of eb?

2180

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why the NGR (neutral grounding resistor) always OFF during DG off?

3472

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there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1917

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What are the necessary components of the feedback control system?

1209

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Explain the advantages and disadvantages of thermal power plant?

1095

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what is p.s impedance measurement test in earthing transformer?

2401

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Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.

1845

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how we find transformer capacity by ohm

2194

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where does 22kv line starts

3086

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which metal is use in shunt

6552

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how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

2224

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How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540

1095

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why we cannot protect 100% winding of an alternator by using differential protection?

2252

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