if u give d.c. supply to transformer primary then what happen.&why??????????????
Answers were Sorted based on User's Feedback
Answer / 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 |
Answer / harish
In DC there will not be any rate of change of flux.. so transforming action will not take place
Is This Answer Correct ? | 20 Yes | 0 No |
Answer / aab.bharti
winding becomes burn because resistance of winding is very low &frequency of d.c is 0 hz so indutance is 0 result net impedence is very very low
Is This Answer Correct ? | 12 Yes | 5 No |
Answer / p.senthil kumaar
DC Has no change in emf.
So, primary coil becomes burn.
Is This Answer Correct ? | 4 Yes | 0 No |
is there or does RCCB work for single phase connection?
Difference between SFU & FSU with advantantages & drawback?
A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.
The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason
what is the function of Choke?
9 Answers Airport Electrical, Cummins, Tamco,
If DG runing time Neutral earth connection Dissconect what will be the effect in load and equipments.
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
why do we lay up the core of a cable?
The iron loss in a 100kva transformer is 1 kw and full load copper losses are 2 kw, then what is maximum efficiency occure at a load?
What is knee point voltage?
why is neccessary Tap changing of power transformer with in a certain time
what are types of servo motors