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What is a Ground-Source return Ground Fault sensing system.

Ground-source return ground-fault sensing systems use one current sensor on the ground conductor connected to the circuit breaker
 via a ground-fault interface module.
 
The current sensor measures the ground current flow.
The system location diagram belowshows the current sensor in a three-phase, four-wire system. Ground-source return can also be used
on
grounded systems which do not carry the neutral.

 
Please refer the below file for more details



 
Please refer the below file for more details
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