High Resistance Grounding
High resistance grounding systems (HRG) are a subset of neutral grounding resistors which allow for continuous and safer operation during ground fault conditions. Our advanced systems can detect ground faults and control transient overvoltages during phase-to-ground faults across multiple feeders, and come with many features to enhance protection, reliability, and ease of maintenance.
MegaResistors offers the best-in-class high resistance grounding on the market. Whether you’re a small production facility, a data center, or a nuclear power plant, we have systems that can meet or be tailored to your exact requirements. Scroll below to see why we are your best option for High Resistance Grounding Systems.
We have three levels of standard models. Each model can be configured to your requirements, and serve as a great base for customization. If you have a completely custom requirement, you can email or call us and we’ll work with you to create a system that meets your needs.
If you are designing a new facility or retrofitting an old one and are considering high resistance grounding, there are a few implications you must consider prior to completing the design and entering the procurement stage.
When a single phase-to-ground fault occurs, the phase-to-ground voltage on the other two unfaulted lines will increase.