Per the NEC 230.95 Ground fault protection of equipment, ground fault protection of equipment shall be provided for solidly grounded wye electric services of more than 150 volts to ground (but not exceeding 1000 volts) phase-to-phase for each service disconnect rated for 1000 amps or more. The system should also be performance testing when first installed on site.
Titan QPS has experience testing various ground fault systems. To the right of this narrative is an example of the label that is completed on site by Titan QPS, and applied to the main device for visual verification that the ground fault device has been tested. We can also develop recommended ground fault settings on site if no specified settings have been developed.