Shaft Currents and Electrical Discharges in Variable Frequency Drive Motors

Shaft Currents and Electrical Discharges in Variable Frequency Drive Motors Stray currents that pass through bearings occur in variable frequency drive (inverter) motors. These currents cause electrical erosion — micro-melting on the surfaces of raceways and rollers. Causes of Current Occurrence Ind......

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Electrical Erosion and Stray Current Damage in Generator Bearings

Electrical Erosion and Stray Current Damage in Generator Bearings Stray currents occur in wind turbine generators, passing through the bearings. These currents cause electrical erosion — micro-melts on the surfaces of raceways and rollers, leading to accelerated wear. Causes of Current Generation In......

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