Interested to Buy Any Domain ? << Click Here >> for more details...
why circuit breaker closing time is always higher then
tripping / opening time.
- 13 Answers
- 48992 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
What range of speed can you get with the armature control method of speed control of d.c. Shunt motor?
Haw to check conductivity of budbar
In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
what are the possible reaons & remedies if resistance of NGR getting heat up
If you have an earth with pilecap then your resistance is really low. why and how?
CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??
What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?
Can i replace Earth leakage relay to the faulty Earth Faulty Relay
What is center gravity load in substation?
how can maintaince the acb contactor moveing and fixing kit
Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station
What is the difference between line drop and percentage line drop?
What are all present producing cost of Per KWH of various Fuel?
how to find impedance , mutual indatnce in transmission lines
What is mean by spike arrester(Voltage Operated)
