low resistance gro
Low resistance grounding resistor systems protect power transformers and generators from damaging fault currents. Low resistance grounding of the neutral limits the ground fault current to a high level (typically 50 amps or more) in order to operate protective fault clearing relays and current transformers. These devices are then able to quickly clear the fault, usually within a few seconds. The importance of this fast response time is that it:
- Limits damage to equipment
- Prevents additional faults from occurring
- Provides safety for personnel
- Localizes the fault
- UL Listed
- CSA approved up to 7200v
- Seismic Zone 4 Certifications and type tests also available
