neutral connection in generator set paralleling
neutral connection in generator set paralleling
(OP)
Hello
I am planning to connect the neutral of the entire three synchronized cat 608 kva similar generator set on the common ground bus bar (the ground will also be connected to the bus bar) without any neutral- grounding contactor (this is because I am using 3 pole contactors for the main synchronization). I have tried to gather information about this idea on the internet and I have seen different ideas posted which contradicts. Will this create problem?
Please advise me from practical point of view.
If it is possible advice me, any ways which could avoids the possible risks without using the neutral contactor
Thanks in advance
I am planning to connect the neutral of the entire three synchronized cat 608 kva similar generator set on the common ground bus bar (the ground will also be connected to the bus bar) without any neutral- grounding contactor (this is because I am using 3 pole contactors for the main synchronization). I have tried to gather information about this idea on the internet and I have seen different ideas posted which contradicts. Will this create problem?
Please advise me from practical point of view.
If it is possible advice me, any ways which could avoids the possible risks without using the neutral contactor
Thanks in advance





RE: neutral connection in generator set paralleling
Establishing a separate ground point for the three generator neutrals sets up a possible problem for other ground fault protection that might be provided if there is a separate utility service.
Since the three generators are identical CAT units, issues related to harmonic currents should be minimal.
RE: neutral connection in generator set paralleling
iceworm