Interested to Buy Any Domain ? << Click Here >> for more details...
what is transformer
- 63 Answers
- 81078 Views
- ABB, Advance Power Controls, CERC, Electrical, Electrical Supervisor Competency Certificate, ETA, IBM, Jindal, I also Faced
- E-Mail Answers
Answer Posted / madhur joshi
Transformer is an electrical static device which transfers
power from one circuit to another without change in
frequency.It can step up or step down the voltage as
desired.
| Is This Answer Correct ? | 8 Yes | 5 No |
Post New Answer View All Answers
WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?
compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor
Is MEN and RCD related to each other ?? IF yes then how??
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
What are the advantages of stationary armature and rotating field system?
What is the formulae of Megger value for a A.C.Motor
why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving
i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com
What is the disadventage of gland earthing(power cable) if any. ?
WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
we need a ntpc previous papers
what is mean by PIR in circuitbreaker and give me detail of that?
what is fault level of power system ?
testing of Vector Group – YNaoD II
