Generator neutral grounding (NGR)

[Asghar Hussain]

Dear All

here we have two examples of Generator Nuteral Grounding my question about Earth switch closing

Example -1

if three generators are in operation and one earthing switch is closed, can we close generator-2 or generator-3 earthing switch closed at a time of parallel operation? yes or not ?
if not please explain in detail

example 2

this operation has separate NGR no confusion we can closed individually.

 

[Greg Bernhardt]

I'm sorry you are not finding help at the moment. Is there any additional information you can share with us?

 

[jim hardy]

if three generators are in operation and one earthing switch is closed, can we close generator-2 or generator-3 earthing switch closed at a time of parallel operation? yes or not ?

Why would you want to close more than one ? Any one grounds all generators that are connected to the bus.

On the other hand, it would hurt nothing provided there are not two simultaneous faults on different machines .

And the resistor should be sized according to distributed capacitance of however many machines you intend it to serve.