What is difference between MCB,MCCB,ELCB and RCCB? Brief description and why RCCB is costly?

3 Answers   JLL,

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what is induction motor

2 Answers  

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why the neutral point in connnection oscillates?

0 Answers   Avalon,

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suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

2 Answers   ABB,

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On the secondary side of a distribution transformer, we use 1c x 630 sq mm cable. Why dont we use 4 core cables instead of 1 core cables on the secondary. Why we use aluminium cable glands on the outgoing instead of brass cable glands?

2 Answers   Siemens,

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How to measure the capacity/rating of a distribution transformer in KVA?

0 Answers  

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What is the difference between AC voltage and DC voltage?

6 Answers  

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In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?

5 Answers  

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state the working of discharge lamp?

0 Answers  

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Do you know the faults occurs generally in motors and how to rectify them?

4 Answers  

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Describe the test procedure to determine the vector group

0 Answers   MPSEB,

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what is the meaning of impedance protected in instrument cooling fan

0 Answers  

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