Why do we need neutral contactors for each generators in a group of generators (synchronized generators)? What problem could happen if we connect all the neutrals directly with the ground?
Is your system's neutral grounded through NGR (Neutral Grounding Resistor)?
If yes, then only one generator need to be grounded at a time (see the previous posting http://cr4.globalspec.com/thread/36055 ). This could be the reason of separate neutral grounding contactor for each generator.
-MS
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"All my technical advices in this forum must be consulted with and approved by a local registered professional engineer before implementation" - Mohammed Samad (Linkedin Profile: http://www.linkedin.com/in/msamad)
The best source of information is the Designer, whose name will be on the "for construction" drawings.
If the system is already built, then the name will be on the "as built" drawings.
If it is on neither of these, the original equipment manufacturer's contact details will be on the outside of the equipment.
If it isn't there then it will be in the maintenance information for the facility.
It is extremely unlikely that these sources of information are registered as users on CR4.
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Neutral Contactor in Synchronized Gensets
Re: Neutral Contactor in Synchronized Gensets
