ciy
Electrical
- Jul 7, 2009
- 53
Hi,
Please advise when undervoltage Relay (27) Shall be trip the CB or just alarm only?
What is need to concern?
Is there any criteria for following?
Thanks.
ciy
Please advise when undervoltage Relay (27) Shall be trip the CB or just alarm only?
What is need to concern?
Is there any criteria for following?
Thanks.
ciy