If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for

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.

Question Posted / malvikagohil

0 Answers
2397 Views
Usha Capacitors, I also Faced
E-Mail Answers

No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Electrical Engineering Interview Questions

any earth foult trip the relay but in welding time not trip by earth foult

0 Answers Power Grid, Siemens,

In 3 phase induction motor 1hp current rating is 1.5 amps constant ? is correct or not ?

4 Answers TATA,

why synchronization done in clockwise direction?

12 Answers Hindalco, NTPC,

how to calculate power

3 Answers

what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?

0 Answers DEWA,

how dc load convert to ac load

3 Answers Sunpower Solutions,

Difference between 3.5 core and 4 core

2 Answers

difference between brush less & brush excitation in a generator?

1 Answers

What is Exitation voltage and Exitation current? What is the function of these in Alternator?

2 Answers TC, Tisco,

What is the difference between isolators and electrical circuit breakers? What is bus-bar?

0 Answers

What are the saftey parameters in transformers?

2 Answers

what is the difference between active power and reactive power and apparant power in practical as well as theoritical

0 Answers

For more Electrical Engineering Interview Questions Click Here