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
- 12647 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
xpression 'document.FrmQF.myemail' [
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
How to set the relay,,??
Why hydropower stations are preferred solution for meeting peak loads in grids?
how wecalculate breaking capcity of acb mcb mccb .explain with example
What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?
why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?
why effective resistance should be more than static resistance in transmission line?
What is the count of hvdc transmission lines in india?
An impedance of 100 ohms resistance and an unknown inductance is connected across the capacitor. The resulting impedance is a pure resistance of 500 ohms ifω = 10^5 rad/sec. calculate the values of inductor and capacitor.
What is Surge Capacitor? Why it is use in Generator Circuit Breaker?
What is the simplest formula to calculate the rotor diameter of a synchronous generator?
Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)
What are the weight of 800KV DA,DB and DC type tower ?
