dbelect
Industrial
- Jun 14, 2008
- 3
I have encountered a problem with equipment burning up for no appearent reason.
This is a large site and the problem that I have is with temperary power. There are several pad mount tranformers 4160/600v as you can tell I'm in canada and generally use delta wye.
Earler this week we had a disconnect blow up. There was no load on this disconnect and the cable on the load side megered good and the welding machine bank was off.
When it blew it did not take all of the fuses but it did melt two of the line side lugs completly off and burnt the third off in the splitter trough. This causing the disconnect to be blown off the skid hanging with the door open.
The secondary voltage has two lines at 600v and the third 630v.
Could this type of imbalance cause a surge?
This is a large site and the problem that I have is with temperary power. There are several pad mount tranformers 4160/600v as you can tell I'm in canada and generally use delta wye.
Earler this week we had a disconnect blow up. There was no load on this disconnect and the cable on the load side megered good and the welding machine bank was off.
When it blew it did not take all of the fuses but it did melt two of the line side lugs completly off and burnt the third off in the splitter trough. This causing the disconnect to be blown off the skid hanging with the door open.
The secondary voltage has two lines at 600v and the third 630v.
Could this type of imbalance cause a surge?