jmanderson
Member
Scenario: 480V 3/4 system with 3 Phase generator back up on ATS.
Situation: We have a couple of instances where UPS's were blown either during or after transfer.
I have seen UPS's / surge protection strips with MOV's fail if neutral bonding has been done at both the transformer and the panel.
I realize the above is sketchy but any thoughts?
Situation: We have a couple of instances where UPS's were blown either during or after transfer.
I have seen UPS's / surge protection strips with MOV's fail if neutral bonding has been done at both the transformer and the panel.
I realize the above is sketchy but any thoughts?