1,Building containing 25 flats how much Amp 3 pole MCCB are required? 2, For the safey of each flat how many Amp RCCB can install -loaded with A/C

1 Answers   L&T,

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any earth foult trip the relay but in welding time not trip by earth foult

0 Answers   Power Grid, Siemens,

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When generator connected, the circuit ELCB exploded. What is the reson?

3 Answers  

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The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

0 Answers  

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why do we use UPF watt meter in short circuit test of the transformer and LPF watt meter in open circuit test of the transformer

2 Answers   Bell, TCS,

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WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS

8 Answers  

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we convert 66kv to 33kv then 33kv to 11kv,11kv to 440v.why not we convert directly from 66kv to440v?

7 Answers   HCL, L&T,

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while running ,synchronous generator is being turned off.what will happen to the current flow??

1 Answers  

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Interchange 7 and 6 ,÷and× 36×7+4-7×3

1 Answers  

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Why does the phase voltage of two healthy phases become equal to the line voltage in case of an ungrounded neutral 3 phase star connected sytem when a single line to ground fault occurs ?

2 Answers  

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How to measure current and voltage in an ELV circuit

0 Answers  

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what is power factor? whether it should be high or low? why?

11 Answers  

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