what happens when dc supply is given to the transformer?

Answer Posted / benu

with dc supply reactance part of total impedance will be zero.
,,net impedance will be less,primary current will be high which will generate excess heat in winding,resulting in burning of pri winding

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

3049


On what basis the the size of Lightning arrester for buildings are selected ?

1111


how can maintain the power factor and why and this is how do work tell us

1557


Is there any abbrevation for STUB in Stub bus protection

1498


i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

1555






full form of flry b

3618


how current is reverse from its normal direction during the fault?

2001


how to calculate the formula of cable size if motor kw is given

1696


why servomotor motor? where i apply for best output?

1562


Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this

1249


how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

1580


How phase displacement change in the over current relay coils.

1869


Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

1745


What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

2295


what is the role of transistor in Circuit?

679