why should a transformer be never connected to dc supply
Answers were Sorted based on User's Feedback
Answer / shantanu
the transformer action is not possible with dc of constant
magnitude as the flux will not be genrated btwn primary &
secondary winding ..
Is This Answer Correct ? | 13 Yes | 0 No |
Answer / sivakumar
it mean we are applying dc(constant) current to coil ,voltage is zero across inductor(transformer winding) so there is a short circuit occuring so it draws high current
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / abhinav kumar
Ac voltage waveform is alternate so genrate a mutual induction and dc is direct current so it is not genrate mutual induction
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / bapan
If Dc supply is given to atransformer there will be no change in the flux with time.so,there is no emf induced in the primary and secondary winding and hence transformer action will not take place.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / r. p. siroih
The transformer works on the basis of to transfer the energy (votage) to stepping down or up in alernative mode. In the DC power the current flow in streight line, so transformer can not transfer the voltage .
Is This Answer Correct ? | 0 Yes | 0 No |
why a vaccum is created in condenser
how much amp MCB is required for 1/2 kva power back up?
in ac system the current wave form becomes zero for every half cycle then how can we get continuous supply can any one answer to this plsss
how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?
i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.
Why current leads the voltage in case of capacitor load? Why voltage leads the current in case of inductive load? Why both are with in phase in case of restive load?
why should the lowest unit of a testing transformer ( cascaded transformer ) have higher power rating??
why 3phase is 440v but where as we get phase voltage 220v,we have to get 220*3=660v.can u pleas give in detailed
1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?
magnetizer priciple
Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.
WHAT IS DIFFERENCE BETWEEN PHASE CONVERTER AND VFD