What do you mean by isolators and circuit breakers?
Answers were Sorted based on User's Feedback
Answer / arjun prajapati
Isolator is mannualy
operated switch used
for maintainanc
purpose to disconnect
one ckt from faulty
parts...ckt breaker is
automatic switch used
for protection purpose
in faulty condition...
Is This Answer Correct ? | 33 Yes | 5 No |
Answer / nihar ranjan patel
Isolators-An isolators is switch which is used for
isolating a circuit under no load condition only.It is
switched OFF when a high current is flow through the
circuit and heavy spark will be produce.
Is This Answer Correct ? | 21 Yes | 6 No |
Answer / naresh kumar
circuit breaker operates under faulty conditions only....
where as isolator is operate under no-load
condition..i.e,when a fault occurs on a power system ckt
breaker operates and opens the terminals afterwards isolator
is used to isolate the faulty phase from the operation
Is This Answer Correct ? | 11 Yes | 3 No |
Answer / raj
the above last two answers are exactly correct, but now a
days we have interlock between braker and isolator also.
isolator opens only when braker is opned. also we have earth
switch attached to issolator to discharge induction voltage
in circuit also enable protection under maintanance.
Is This Answer Correct ? | 4 Yes | 1 No |
Answer / dinesh namdev
Isolator used in no load codition & CKT breaker break the
supply abnormal condition
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / elango.k
isolator means its leakage current is less than 2mA when it
is isolated,where circuit breaker is has leakage current
more than 2mA which is not safe for the person working when
it breaker is in off condition.
Is This Answer Correct ? | 2 Yes | 4 No |
What is advantages of VSCF wind electrical system?
how can motor both beasrings insulation resistance can be check?
how to work exciter in 10 MW alternator?
how we can calculate the efficiency of a diesel generator ?
why induction motor having low power factor at starting time and high at full load.
Why dont we get shock while testing for voltage with a line tester? How the bulb inside the tester glows while testing with tester coz we are totaly isolated from earth or we are not giving close path for the current to flow?
2. What are the parameters of EHT sub-station?
1 Answers APGenco, Blue Star, Enercon,
Plugging is a phenomenon to= A braking the motor B to accelerate the motor C to run IM as generator D to start the motor
what is mean by hormonics & surge? and it's effects?
why transformer is rated in kva?
my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?
What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?