11KW Delta motor is taking about 44Amps in star and goes
upto 70Amps in delta and trips OFF. The rated current is
26Amps. Application is for the blower. The motor takes ( no
load without coupling impller ) only 2.5A and 5Amps in star
& delta starter test.Need to know why its taking high
current.

Answer Posted / virendra

There could be two problems

1. the improper connection of the motor to starter mean the
phase sequence.

2. may be possible the one phase is missing & motor running
on 2 phasis means the single phasing phenomina

this is the only reason..........

Is This Answer Correct ?    1 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is servo motor & how does it work.

1496


Can you explain about pole discrepancy scheme

1706


how to find the torque of the single phase synchronous motor by doing an experiment

1517


Can I use star delta connected induction motor for dual supply voltage?

1512


How to know vacuum in vacuum cylinder of breaker in working condition

1490






State and define ohm’s law?

671


sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

1774


How to know th details about an electrical Drawing ? Please mention the easy method.

1993


What is the relationship between voltage,current & frequency?

1262


What current position are you holding in your current company?

1616


one electromagnet is called

1422


Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

1559


why not starting switch first connect in direct on line starter?????

1399


if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

1276


when elecromagnatic waves are propogated in a wave guide?

1478