a new 3ph induction motor doesn't rotates their ratted speed, why ?
Answer Posted / satya rout (oeg rr)
A new 3ph IM check some following stepssss.
1.check bearing status
2.winding insulation resistance
3.check earth leakage current
4.check supply connection input (RYB) =output(RYB) is same.
basically phase inter-change is main reason for rotets the bello speed
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
What are the application of filter?
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.
comparision between ACB and VCB
What is a diode?
please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in
How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?
why core is useful for a transformer ?and also in its operation ?
physical identification of HT & LT panel
What is the name of the winding from which the supply is taken for load connections?
how to increase senstivity of ct
what happen as when voltage drop(or may decrease) ? in case of atomic base theory?
What is referred to the electron in the outer orbit?
What is meant by load angle of an alternator? Upon what factors does the load angle depend?
What are the basic & Majour problems in UPS ?
what maximum range of star & delta in hp or kw ?