what is the difference between MCB & MCCB

3 Answers  

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what is the effect of power factor of machines in starting current

0 Answers  

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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

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AMF (auto mains failure) control for DG sets at home.

1 Answers  

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why we used.c source in the field of the alternator , why not a.c source.

1 Answers  

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how do we calculate contactor and fuse rating for a motor if its full load current is known,i want exact calculation for 1.5 kw motor????

1 Answers   Allied Group, Nucon,

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29 Which of the following breaking method save energy? A regenerative breaking B plugging C dynamic breaking D none of above

1 Answers  

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How to take of Transformer oil Break down voltage test?

2 Answers  

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Why the meters sonnected to metering core of CT are not damagedon event of a fault??? Explain the phenomena??

1 Answers   Schneider,

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What is the PIU.

1 Answers   Jindal,

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difference b/w bus bar and tie line?if possible explain with eg:

2 Answers  

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Explain Circuit Breaker Trip Characteristics in detail.

0 Answers   L&T,

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