Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / kj
The auto reclosure relay is often used in a distribution
system. If a breaker opens on a fault the fault may be
cleared by the fault current of the fault may clear it
self. An example of this is where something hits the power
lines during a storm. It may cause a short circuit open the
breaker. The could be a tree limb shorting across the lines
or pushing the lines together and then falling clear.
In circumstances like this the breaker would normally stay
open until someone access it and reclosed it.
What the reclose relay does is that after a set time delay
it will send a close signal to the breaker. This will then
restore the supply. If all is well the electricity company
can check for the problem later.
If there is still a fault the breaker will open and the
reclose relay will close one more time. If the fault still
exists the reclose relay will lock out until reset.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.
What is the difference between acs 550 & acs 850
How CFL &T5 tube light glows?
Why the power factor improvement is so important in industrial loads
What is meant by reset level of the relay?
1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?
Why we find the sensitivity for the CT's to check?
what is model question rrb junior engineer electrical gr.II
why electronic instruments is more favorable than electrical?
when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com
What does the letter CTNM in negative phase sequence relay means?
how can i find cable size from current rating?
(1)Can earth and be conected together (2) what is the diferent between earth & neutral
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
