Safety products: Shaft grounding ring protects wind turbines from generator failures

Safety products utility safety safety equipment electro static technology
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Safety equipment: By safely channeling harmful shaft currents away from bearings to ground, Electro Static Technology’s new AEGIS™ WTG wind turbine grounding ring prevents bearing damage that could otherwise cause generator failure, unplanned downtime, costly repairs, and lost revenues. Maintenance-free, effective at any RPM, and available for any size wind turbine generator, the ring is designed for OEM installation or easy up-tower retrofit.

High-frequency currents induced on the shafts of wind turbine generators can reach levels of 60 amps and 1200 volts or greater. If not diverted, these currents will discharge through the generator’s bearings, causing severe electrical damage that results in bearing failure and catastrophic turbine failure, sometimes in as little as six months or less. The AEGIS™ WTG’s patented conductive microfiber technology effectively steers these currents away from the bearings and safely to ground.

The WTG is engineered to safely divert up to 120 amps of continuous shaft current at frequencies as high as 13.5 MHz and discharge up to 3000 volts (peak). Ideal for use as part of a preventive maintenance program to protect against premature bearing failures, it can be installed whenever bearings are replaced.

For more information about Electro Static Technology or other products, click here to go to Utility Products’ Buyers Guide.

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March 2015
Volume 19, Issue 3

Utility Products Topics

Transmission & Distribution
                       Vehicles & Accessories
Tools & Supplies   Safety
Line Construction & Maintenance   Test & Measurement

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