what will happen if dc supply is given to ac motor?

Answer Posted / vasudevan

DC has zero frequency. Hence, if DC is supplied then XL
will become zero. That is winding reactance is zero. Hence
winding gets short circuited and they will be burnt
immediately. It may cause severe explosive also.

Is This Answer Correct ?    66 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Describe the control mechanism of missile launcher???

1613


how can we say that stator magnetic field rotates with synchronous speed?can we derive?

1386


Explain the working of any one cutting machine

777


what is difference between bus coupler and auto transfer switch

3587


how to calculate units consumption for a 12 hp motor /hr.

1122






Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph

2128


we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?

1425


What is referred to the electron in the outer orbit?

778


How does HT work & Voltage required?

1840


How to Decide(calculate) Bush bar size for copper and aluminiam ?

1779


is it possible to start a motor in felid connected to a remote mcc

1522


11 kV line deraction check by an Engineer.

1614


What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

1808


If any cable burnt how can we identify it burnt by high current of high voltage? 

2091


A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.

2219