if u give d.c. supply to transformer primary then what happen.&why??????????????
Answer Posted / anirudh garg
if we give a dc suppy to a transformer then as the rate of change of flux is zero so no induction process ill occur but in primanry current is there ans it will effect the primary coil if it is kept for long time (if small dc applied )the wire get heated up and burn .
| Is This Answer Correct ? | 29 Yes | 0 No |
Post New Answer View All Answers
-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS
please send me privious exam's queation papers of section engineer(electrical).
What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?
what is meant by re-rolling motor? how it differs from standard motor?
how to calculate IR value of 33KV cable ??
what are the differant std sizes of cable trenches?
Difference between ac parallel circuit and ac series circuit?
what is the use of expulsition protective gap in 11Kv line.
There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?
how to protect motor in dol starter having capacity of 30 hp.40 hp?
what is v/f control in VFD?
How to test lightning Arrester?
What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer
how can i get an electrical c-certificate?