what is the ka rating of mccb.
and how it is decided .

Answer Posted / aditya shirbavikar

The rating of any circuit breaker is decided on the basis of its breaking capacity. so, the KA rating of MCCB is the unsymmetrical breaking capacity for a particular time.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is load boxes ?

1598


Why transformer used in UPS??

1038


what are the applications of PLC?

1538


List examples of voltage source?

616


role of europe union in UK safety legistlation (electrical safety)

1352






What is line resistance of cable & how it can be measured ?

969


Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

1657


What is a DC series motor?

722


Draw transformer phasor diagram.(full load,no load)

3699


what are the advantages and disadvantages of oil filled cables over XLPE cables

18043


Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

2240


how open delta PT works & what is its construction?

1764


What happen to generator if i have unbalanced load?

1655


plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?

1802


Differentiate between real and apparent power?

667