The AEGIS WTG™ grounding ring from Electro Static Technology (Mechanic Falls, ME) channels harmful shaft currents away from bearings to ground - preventing bearing damage that could cause wind turbine generator failure, unplanned downtime, and repairs.
High-frequency currents induced on the shafts of wind turbine generators can reach levels of 60 amps and over 1200 volts. If these currents aren't diverted, they can discharge through the generator’s bearings, causing severe electrical damage that results in bearing and turbine failure - sometimes in as little as six months.
The AEGIS WTG’s patented conductive microfiber technology steers these currents away from the bearings and safely to ground. The WTG diverts up to 120 amps of continuous shaft current at frequencies as high as 13.5 MHz, and discharges up to 3000 volts.
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. The WTG can be installed whenever bearings are replaced.