Answer / deepak mishra

in double break mcb both phase and neutral are disconnected
from the mains

Answer / k.prakashchandra

contacts are made or broken at both the ends

what is the difference between brushed alternator ,brushless alternator & permanent alternator ?

1 Answers  

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what is a breaker fail relay

0 Answers   Eskom,

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In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

4 Answers   Bhel, IBM,

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what is the mho relay

3 Answers  

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why power factor laggs and leads in case of inductance and capacitance??

1 Answers  

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What is hipot test procedure?

0 Answers   CCC,

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why multiplying factor is used in wattmeter???

1 Answers   Nippon,

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NOW A DAYS THE POWER SUPPLY IS VERY LOW.SO THE FLURESCENT TUBE LIGHTS ARE VERY DIM.IS THERE IS ANY WAY TO INCREASE ITS BRIGHTNESS?FOR EXAMPLE ANY CONVERTER,CONDENSER?

1 Answers   Bhel,

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Why is transformer core is earthed

3 Answers  

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concept of busbar and load dispatching..?

0 Answers  

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How to calculate current carrying capacity of copper conductor _ such as cable size 25sq mm,50 sq mm, 75 sq mm, 100 sq mm

2 Answers  

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Negative feedback circuit is an implication of ? -Shunt shunt -Shunt series -series series

1 Answers  

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