Interested to Buy Any Domain ? << Click Here >> for more details...
why circuit breaker closing time is always higher then
tripping / opening time.
- 13 Answers
- 48559 Views
- United Phosphorus, I also Faced
- E-Mail Answers
Answer Posted / krishnakumar
The circuit breaker is used for protection purpose and the main function is to trip(open its contacts) when relay gives the trip command.the tripping of breaker will isolate the healthy phase from faulty phase.if the tripping time is more t,then the fault will be present for more timing and this will damage the whole system.so the breaker should operate at high speed in order to protect the system.so,the tripping timing should be less.but in case of closing of breaker,there is no need as such as tripping at fault condition.and there is another phenomenon called bouncing that makes the timing increased than tripping time.if the timing is less for closing,then the breaker moving contact moves very fast towards the fixed contact and so the bouncing will be more due to the high speed.this is also a reason for more closing time
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?
Can a generator runs after getting 1st stator earth fault.
How to connect the chemical earthing and complete process tell me plz
How do we calculate transformer oil in liter from the rating of the transformer.
We have two parts in generator, electrical & mechanical. how it works?
where are the circulat the diesel in DG parts name with pictue
how power is generated,and transmitted to our home..pls explain briefly in simple words.
In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?
substation+ plc system
how can motor both beasrings insulation resistance can be check?
what is ic 01,ic 06 ?is it types of cooling?
what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:
what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing
What is a signal flow graph?
how to calculate vfd o/p voltage by frequency
