Answer / vikram ahuja

A MacAdam ellips is the region on a chromaticity diagram which contain all colors which are indistinguishable, to the average human eye,from the color at center of the ellips.

why ground cannot be used as neutral as ground also provides close path for current flowing ?

3 Answers  

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what is the difference between arc and spark

2 Answers   ABB, Jindal,

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A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

0 Answers  

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what are the various types of earthing? plz give brief detail of all. also post pictures if u have.

22 Answers   Aster Teleservices, Era Infra Engineering, Micron Electricals,

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If the capacitor bank is installed in switchyard say 132/22kv then on LT side say 22kv/0.433kv is it necessary to install capacitor bank for maintaining power factor. if pf is maintained on HT side then will that be maintained on LT side as well.if not then how&why??????/ please explain...........

3 Answers   MacLellan,

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Hi Friends pls give information regarding BARC written test. am attending by 20-5-2008. mail me to kkumarei@gmail.com or message to 9962122264

2 Answers   BARC,

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what is the method to measure the transformer current carrieng capacity in three phase.

1 Answers  

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how to find the voltage drop

1 Answers   Sharjah Electricity and Water Authority SEWA,

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why we are using KVA rating for transformer,not KWh rating?

5 Answers   NTS,

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Q-1 what are the structural and operational difference between a distribution and a power transformer? Q-2 what is skew in motors? Q-3 draw equivalent circuit of transformer Q-4 explain with phasors how pf is improved with loading in induction motors Q-5 DIFFERENT METHODS OF CABLE LAYING(interviewer asked if i heard new chemical based earthing system next) Q-6 pi model of medium length trans line Q-7 v/f control?why Q-8 vacuum circuit breaker operates in?

1 Answers   Vijai Electricals,

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What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

0 Answers  

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what are the duties of commutator in motor and generator?

6 Answers   L&T,

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