how to calculate the starting current of a motor? gopal

Answer Posted / ajai shukla

It depends upon that motor is under load condition for mechanical free.
If motor is under load then I will take 2 to 3 times of full load current. Keep in mind that motor is running in DOL starter.
Under no mechanical coupling it will take 1.5 times of full load current.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Draw the line diagram of diffretial relay connected to transformer?

1964


Can RCD's used to protect the VVVF drive if not why.

1715


I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

1371


What is the diff. between single compression and double compression gland

1514


What is the problem of internal failure in ship engine telegraph system norcontrol?

1745






What are the advantages of nichols chart?

832


What is the function of attenuator in cro?

729


what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

1560


Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1461


who many types of fire explane with exmple

1734


what is the meaning of 0.5ohm Resistance

1397


UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

1468


I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME

1403


What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

1546


why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

947