Questions in power engineering

  • Thread starter Jason_tcs
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May I know seek advice from experienced guys because I have interview test for my power engineering as below. Thank you.

a) For 600A switchboard, what type of device setting need to do?
Can I say that I need to do setting for direct acting for MCCB since more than 300A and earth fault relay setting?Any other else?

b) How to calculate the earth fault setting since some use ELR and EFR with the setting range only 0.03A to 3A or 10A and so on for the switchboard below 700A?

c) What is the sequence for electrical testing need to do for the bungalow when electrical installation completed before supply is turn on?

Can I say need the test below:

earth electrode test
Continuity test
Ring final circuit test
Insulation test

d) How we apply the value of earth fault loop impedance value and earth electrode resistance value?
 

Answers and Replies

  • #2
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Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 

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