Answer / vijay

when you connect a supply of 220 V AC/DC to a battery of 20 V DC the first thing that there would a big flash and battery will blast, if the 220 V side as reliable fuse / breaker it will trip. Now if it is AC then the effect would be more severe because the electro chemistry of the battery is subjected to reversal at a very fast rate.

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0 Answers   RRB,

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If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

4 Answers  

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Is there any question in the name of Static Switch in UPS??

0 Answers  

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What is the impact of MCCB & MPCB on Distributed Control System?

6 Answers  

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What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

1 Answers  

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why do we not use equivalent voltage source in negative sequence equivalent ckt.

0 Answers   TATA,

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How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.

0 Answers  

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I have lowered a submersible pump having 100 LPM discharge & 130 Mts. Head, 15 HP rating on borewell. After lowering 108 Meters, It is taking 39 amps & blowing the fuse. Can someone put light what is the cause behind it ?

1 Answers  

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Which protection detects both AC and DC?

3 Answers   Megatron Solutions,

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0 Answers  

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how on load transformer is chnage the Tapping ?

2 Answers  

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the total iron closs in a transformer core at normal flux density was measured at 25hz and 5ohz and was found to be 250w and 800w respectively.the hysteresis loss at 50hz would be................?????

1 Answers   ABB,

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