Why P.f. of the system decreases when it is connectect
across induction motor? & how to maintain the p.f. of
system to unity.?
- 6 Answers
- 8860 Views
- Reliance, I also Faced
- E-Mail Answers
Answer Posted / ravi
Bcoz the IM will drwa an Lagging Current..
We can use a APFC Bank to maintain it.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
is IS says that neutral should be brought to switch box. and this one is a recomended practice
Explain the process of commutation in a dc machine.
why occ characteristics of generator is also called as magnatization characteristics ?
Why back emf used for a dc motor? Highlight its significance.
What should be the height of basement according to NBCC code?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.
Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
Which types of gate insttaled in static switch. Please give me answer.
List the characteristics of filter?
What is size 00, 01, 1 etc., in HRC fuse types?
What are the differences between single phase and three phase?
What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker
