What is the difference between Isolator annd Circuit
Breaker.

Answer Posted / sameera

Isolator are off load device it is not use for making &
breaking current. Therefore it not has making & breaking
current for the capacitors.

Eventhough the isolator is used to operate with zero
current these are instantaneous in which this are used
under load condition. Then the isolator act as on load
device.

Circuit breaker is switching 7 current interrupting device
& operate under normal & abnormal condition.

Is This Answer Correct ?    2 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is cathodic protection and why it use in industries?

1763


what is the function of gss in the dg set.

1486


Name two low frequency oscillators?

911


What is the minimum underground tank size capacity considered for firefighting purpose?

1489


any one can explain the stages of a knee point which is taken during ct magnetising curve.

1329






what is difference between line differential and transformer differential?

1247


Define branch?

637


why tertiary winding is used in transformer with diagram?

1799


Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

1877


Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1442


1hp= how much rpm

1592


7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

1781


Explain what cmos is and its benefits?

662


what is the reason the main breaker is trip during the motor is running? (some time the breaker is not trip)

1317


Can any body tell gulf interview question for experienced electrical engineer ?

1632