3phase lt motor winding how to checking with megger

Answer Posted / saurabh

for a delta connected motor megger between all the phases
and see that it is showing zero resistance that means
winding is healthy.For star connected motor check phases to
phse between r-y and r-b and it should show shorting

Is This Answer Correct ?    16 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

1434


What is slip in an induction motor?

646


Can you explain about Restricited earth fault protection scheme

1406


What is capacitance?

734


what is upper impedance and lower impedance of a distance relay

1591






what is the practical application of full adder circuit?

1416


BSNL TTA EXAM QUESTION

1769


how to calculate vfd o/p voltage by frequency

1716


at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)

1468


Dear Sir I am living in Jaipur Rajasthan  now I did complete my b tech degree in electrical engineering in 2012  Sir how I gate certificate of competency for electrical supervisor

1585


what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?

1495


How to calculate capacitor bank size at a load 800kVA.

1169


why r we using shell transformer for low voltage

1542


IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)

1630


what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

1711