please tell me how a surge protector work on a DC 48Volt.? please describe briefly.

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Why hydropower stations are preferred solution for meeting peak loads in grids?

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how to calculate full load current of transformer & induction moter ?

2 Answers  

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What is negative sequence over voltage element?

0 Answers   Green T&D,

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I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.

0 Answers  

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In Designing the rating & accessories of a MCCB how to choose the type of releases..means what is the basis for selecting, thermal magnetic, electromagnetic & microprocessr based releases

0 Answers  

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why in isolation transformer we dont get any shok?

2 Answers  

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what are the types used for alternator earthing,what will happen if more than two alternator is working in parallel with each having own system earthing.is there any possibility for circulating current in between two system.

3 Answers   BEL,

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When a fourth resistor is connected in series with three resistors, the total resistance

1 Answers   ITI,

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what is reactive power?

2 Answers   Vestas,

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a 650 KVA diesel generator is 1500 rpm, voltage is 415V n full load amps is 805 something,when are applied load more than 400 amps it's voltage is dropping, what is the reasons...?

4 Answers  

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in an open circuit. test there is no load curent.. but secondary. ia open then no urrent have to flow but there a smaller current flows why?

4 Answers   Rubber Park,

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