why transformer not work in dc

16 Answers  

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Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

0 Answers   GE,

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can we use trip light with bus coupler?

0 Answers  

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What is VVVF Drive ?

3 Answers  

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what is the difference between thyristor & IGBT?

2 Answers  

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Is it recommended to apply H.pot test for new cables segments after terminations or joints, however, this cable has been tested before at the manufactor by the vendor ? or only we can apply megger tests ?

1 Answers   Centroid,

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IF we have three 30KW motor, these motors are connected in DOL, star-delta and VFD respectively, what will be the fuse rating for the above three?

7 Answers   DOL, GSK, Ojus,

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what is the function of compressor?

2 Answers  

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I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?

0 Answers  

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how we calculate the knee point of a protection and metering CT and what is the testing procedure.

1 Answers   CS,

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How can we determine or find out the proper size of any cable if nothing is mentioned on it.Calculation of size in Sq.mm???

1 Answers  

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what will be happened when a single phase motor is supplied by the dc supply

3 Answers  

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