Interested to Buy Any Domain ? << Click Here >> for more details...
what happens when we apply dc to a transformer
- 7 Answers
- 11384 Views
- Siemens, I also Faced
- E-Mail Answers
Answer Posted / santosh kumar garnayak
when dc will be applied to transformer,as inductor will be
short circited(in dc f=0 so xl=2*pi*f*l=0) so net resistance
(I=V/(R+XL)=V/R ) will decrease and high amount of current
will flow which will result in damage to the transformer`
| Is This Answer Correct ? | 19 Yes | 1 No |
Post New Answer View All Answers
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
Work done in a free expansion process is
A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why
Safety of on line ups
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.
What is the working principle of MIG welding? and its out put Voltage?
how is positive, negative, zero sequence is happen.. how is effect on 3 phase system
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?
Why is the air gap between the pole pieces and the armature kept very small?
in science exhibition how lamp can blink when you clap near the lamp ? thank you
List examples of current sources?
in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.
hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?
