At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC
54A as per the nameplate. At the time of starting it draws
840A instead of 390A (7.2%). As per the data sheet also its
390A starting current. it thru a dol starter from the MCC.
can anyone tell what is the problem in the motor
- 5 Answers
- 9693 Views
- ME, I also Faced
- E-Mail Answers
Answer Posted / ranjan prasad
From the question motor terminal connection is not known.
However this problem may arise if you will connect the
motor in delta instead of star. First check the terminal
connection of motor, if it is in star, connect in the same
manner.
| Is This Answer Correct ? | 7 Yes | 3 No |
Post New Answer View All Answers
what is formula to cal cute earth pit numbers and size of earth strip used in earthing?
what is different between relay and plc?
1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks
In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?
Draw torque - speed curve and load curve of induction motor? mark operating point ?
A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?
What is time invariant system?
whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?
Safety of dry type transformer
What is the BS(British Standard)code for 11kv motor
our industries ht line so power fluctation(once drop of power please rectify causes
Define active filter?
when we decide to use soft starter drive or vfd drive in mcc to operate apump?
I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
