What will happen if I apply DC to AC transformer? please
send detailed answer at habib_rahman_habib786@yahoo.com
Answer Posted / e venkat reddy
if u apply DC voltage to transformer,
reactive load whose formula is
Xl=2*phi*f*L
In pure dc the frequency is zero so inductive reactance is
zero and the resistance of transformer is very small ie .2
to .4 ohms. if u apply 230v DC then the current will be
230/.4= 575 amps so that it is going to burn winding of the
transformer. so we use transformer only for AC voltage.
| Is This Answer Correct ? | 14 Yes | 0 No |
Post New Answer View All Answers
how the aircraft outer body and inner body is separated ?
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
How to calculate multiplication factor in kva example 500kva ans pls ?
how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............
how is the testing of an REF relay? what are the test REF circuit having?
what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.
What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?
how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me
Why Neutral Isolation is required?
A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is
Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?
How will change the frequency in distribution side?
What is meant by reactance voltage?
Why mostly the HV side of transformer has Delta?
what is sevice settings for mccb?How can be it setted?