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.
- 10 Answers
- 16936 Views
- Pfizer, I also Faced
- E-Mail Answers
Answer Posted / gunasekaran
u r not explain proberly it is due to inrust current for
star phase voltage=VL/sqrt3
for delta phase voltage=line voltage so it is taking more
current than star.normally at stating motor taking 5to 6
six times of the full load current i think nothing wrong u
can incress the relay setting and then start the motor
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
what are the application of over current relay?
what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?
I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain
what is control supply rating of a machine
what is there inside an inverter and how it works?
electrical knowelge
Operation carried out in thermal power stations?
What is A check, B check, C Check & D check for a diesel Generat
what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights
What types domain of laplace transforms? What behavior can laplace transform predict how the system work?
can mini-curcuit supply MIL-tested transformer !
temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%
help me with the question that might be ask on the interview for technical position
What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.
