Interested to Buy Any Domain ? << Click Here >> for more details...
why we remove capacitor connection in 3 ph Induction Motor
while taking noload test.
- 7 Answers
- 12897 Views
- Aditya Birla, I also Faced
- E-Mail Answers
Answer Posted / loboreliance2003
Actually the question should be why is the capacitor bank
connection to be removed from the motor before taking the
no load test. This has nothing to do with capacitor of
motor. 3Ph induction motors dont have capacitors to
start.These are only used for single phase motors.
The answer is that capacitor bank is provided on any
Inductive load due to power factor dipping to below0.8 and
sometimes even to 0.5. To improve the power factor we have
to connect the capacitor banks depending on the size of
motor.
But if motor is not run on load then it is not necessary to
connect the capacitor. Hence no load tests can be done
without having to connect the capacitor bank to the motor.
the other reason is that there is danger of over voltage
due to capcitor being connected then PF will be greater
than 1 which could damage the motor windings. I have faced
these motor burning problems due to this reason.
| Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer
Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?
From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
how is positive, negative, zero sequence is happen.. how is effect on 3 phase system
what is the use of the circle diagram
in india per day how much power is generated including all power station
What facility we get after CT secondary earthing and how?
What will be the effect if I use inverter as UPS mood?
Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???
What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?
what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current
Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.
What are IR values and what it should be for coil and for insulator
