Answer Posted / md al mamun

in case of leading power,terminal voltage will fall on removing the full load,in this case voltage regulation is negative.

how line turns ratio changes in 3 phase with change in connection

1965

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1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks

3359

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Give atleast 20 alternating current apparatus and devices.

1763

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the typical output of a solar cell is........

2338

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What is the use for cable entry in control room?

1153

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What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?

1856

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Difference between ac parallel circuit and ac series circuit?

2095

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critically criticize the application of ring main unit in power system

1438

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1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?

1985

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Electronic circuit

1023

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What is the difference between the relay and the circuit breaker?

1109

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What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

2259

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i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

3421

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i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester

2146

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what is the difference between earthing and unearth

3054

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