Electro Static Technology (Mechanic Falls, ME) offers the AEGIS® iPRO-MR ring that combines shaft voltage bearing protection with continuous monitoring of shaft voltage levels from a remote location in real time. It is an AEGIS® Shaft Grounding Ring and a shaft monitoring ring in one for large motors and generators in critical applications. The ring is suited for the protection of motors in remote locations that cannot be easily monitored or maintained. It is available in a range of sizes to accommodate even the largest motor shaft diameter, and comes in mating halves to facilitate field retrofits on coupled equipment.

With multiple rows of conductive microfibers surrounding the shaft, the ring provides millions of discharge points for harmful shaft currents and is suited for high-current motors controlled by variable frequency drives (VFDs), including low-voltage motors over 500 HP, medium-voltage motors, power generators, and OEM systems. It handles high-frequency shaft currents up to 100 MHz.

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