Answer Posted / kayyum

at start in star 1/root 3 times line vtg, and current is
praportional to vtg.

what is basic difference betmeen normal & flame proof motor??

2104

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how to commissioning the genset with amf panel?

2349

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Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2126

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if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?

1972

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what r the safety measures in UPS ? explain all?

2173

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Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar

1835

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What is polar plot?

1120

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Explain difference between stand by earth fault and residual earth fault protection?

1940

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How does cost of generation from hydropower plant compare with other sources of electricity?

997

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The shot circuit in any winding of transformer result? Explain

1276

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in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

2248

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Whether the vacuum contactor requires Short circuit protection?If No,why?

1986

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1.how many types of relays? 2.difference between ATS& STS?

2102

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15hp motor wound by 0.9mm & 0.95mm magnet wire. at no load test it draw 4.2A current. Another motor with same condition draw 9.2A current. How can that occur? pls help

1517

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how to test the electrical panel.ht lt mcc pcc.

3720

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