why electron produce magnetic field when it is in motion?

0 Answers   Power Grid,

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What will happen if we give DC supply to AC motor?

9 Answers  

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what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

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what is the reason for drop in freq. from 50 hz at generating side to 49.8 ,49.6 etc.at receiving side???

2 Answers  

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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

1 Answers  

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What is effect of over voltage and under voltage on ACB

0 Answers   EFS,

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which MPU register provides the address from which the next instruction byte is to be fetch?

1 Answers  

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how to select a breaker (MCB,MCCB,ELCB) for 18.5 kw, 3 ph. 480 v, 60 hz induction motor?

4 Answers  

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DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain

1 Answers  

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how can u do the earthing of an aeroplane?

5 Answers  

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Can anyone tell me what will happen if AC & DC supply get mixed???

9 Answers  

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