What are generator neutral earthing resistances

AI Thread Summary
Generator neutral earthing resistances are devices that limit fault current in electrical systems. While they are generally not required for small generators, their necessity can depend on specific applications. In scenarios involving parallel operation of two generators, considerations for additional protective devices, such as a stator winding fault relay, may arise. The discussion highlights the importance of evaluating the application to determine the need for these resistances. Overall, the use of neutral earthing resistances should be assessed based on the operational context of the generators.
Josh111
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what are generator neutral earthing resistances. Are they necessary for small generators?
(50 KW 3 phase 120/208v.)
 
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Josh111 said:
what are generator neutral earthing resistances. Are they necessary for small generators?
(50 KW 3 phase 120/208v.)

Devices that limit fault current. Shouldn't be required on a small generator but depends on the application.

CS
 
stewartcs said:
Devices that limit fault current. Shouldn't be required on a small generator but depends on the application.

CS

What applications will be necessary? I plan to run 2 generators in parallel. (3 phase) Would a stator winding fault relay be needed also?
 
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