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WHY RATING OF VCB NOT LESS THAN 630A

0 Answers  

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Why have to use copper cable for local isolator to motor ?

0 Answers  

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I am getting differential earth fault in my transformer realy , i have checked all its CT & control wiring but do not get fault, Please help

6 Answers  

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in india single phase is 230v and three phase is 440v but in other countries single phase is 110v and three phase is 380v why..?

2 Answers  

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how many load we can take for lighting

0 Answers   ABB,

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why three phase capacitor takes unbalanced current in capacitor bank?

0 Answers   Aggreko,

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For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?

0 Answers  

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why the motor running in delta connection ? it can be in star?

13 Answers   NTPC,

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What is diffrence bitween electrical and electronics ?

4 Answers  

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how to reduce humming noise in transformer?

3 Answers  

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1) What is difference b/w impedence relay and differential relay? 2) what are substations equipments? 3) what is difference b/w circuit breaker and isolator? 4)what are the types of circuit breakers? 5) which medium is mostlty used in circuit breakers and why it is used?

1 Answers   NTDC,

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what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.

0 Answers   Ahsanullah University of Science and Technology,

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