how to select a circuit breaker?

Answer Posted / rk

Rateed voltage
Normal current
breaking curren i.e. fault current fault mva
aux supply volatge
C-O-c seq for auto recl function

Is This Answer Correct ?    9 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the advantages of vscf wind electrical system?

637


What happens to voltage when current is zero?

773


sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence

1649


what is the excess air in furnace

1597


Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)

2217






what is transient voltage?

1794


Explain the working principle of Synchronous Generator and Assynchronous generator?

1737


briefly explain principle of resistance welding

1415


I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

1453


What is self exciting?

1270


How to calculate Voltage regulation of 22 KV Over head Line.

1196


in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

1631


The height to which the liquid in a tank to be maintained for a certain constant velocity?

1525


what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

1484


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

617