Neutral grounding of generator

[siwan]

If multiple synchronous generator earthed through neutral grounding transformer located in same power house . Shall one generator neutral be earthed or all the generators ?

 

[low1]

All should be grounded through a grounding transformer

 

[dpc]

It depends on how the generators are connected to the system. If there is a dedicated unit transformer for each generator, each needs its own grounding resistor. If the generators are directly connected to a common bus, you have more choices and decisions to make.