i work as a technician at a private company.. i used to take amp reading for certain appliances such as air con.. the problem is when i clamp the neutral, wire there is a current reading.. from my understanding for single phase system neutral should not have current unless if the circuit is not complete.. yet the air con still work

3 Answers  

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DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

6 Answers   GE,

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How does a battary stores charge in it? please explain in simple manner and in detail.thanks

0 Answers  

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why vector group used in transformer and what effective in output

1 Answers  

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How to conduct a Hipot test on a 11KV cable?

2 Answers  

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where solid grounding and where grounding through ngr done and why?

0 Answers   NTPC,

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How can calculat the lode of transformer?

2 Answers   Maruti Suzuki,

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if a motor is running at 1500rpm then how you can find its HP

1 Answers   Construction,

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what is the difference between ups & inverter

4 Answers   Cushman Wakefield, Dana Group,

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What are various power system instabilities and what are their effects on power system operation?

1 Answers  

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why transformer rated in KVA not in KW ? we know that W= v*i

6 Answers  

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what is bus coupler, where it used.

14 Answers   Diebold,

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