how to select a circuit breaker?

Answer Posted / sandy

it depends on current carrying capasity

Is This Answer Correct ?    1 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

11 kv input, 66 kv input advantages

941


critically criticize the application of ring main unit in power system

1004


What is resonant frequency?

712


If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

1844


what is the difference between megger and earth resister ??

1341






Safety of dry type transformer

1489


Approach of a cooling tower is the difference between temperatures of what factors?

622


What is reactive power and where it is used.

1202


What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

1104


What are the advantages of stationary armature and rotating field system?

708


WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

1469


what happened when we supply a dc current in dc motor?? can it worked properly?

1464


Describe the test procedure to determine the vector group

1603


what is the voltage regulation for unity and zero power factor?

1766


How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

1524