This guide outlines the essential procedure for testing insulation resistance in electric bearings to verify protection against damaging shaft currents. It covers necessary equipment, step-by-step testing methods, and how to interpret results to ensure long-term motor reliability.
This practical guide explores essential bearing insulation technologies, including plasma-sprayed ceramic coatings, hybrid ceramic designs, and polymer barriers. It details how these systems prevent Electrical Discharge Machining (EDM) damage in VFD motors and helps engineers select the optimal solution for reliability.
This guide explains the origins of shaft voltage in VFD applications, the risks of electrical erosion, and practical strategies—including grounding and insulation—to protect motor bearings.
This guide outlines the critical steps for OEM engineers to correctly specify electrically insulated bearings during the design phase, ensuring long-term motor reliability in VFD and high-voltage applications by preventing electrical discharge damage.
This article explains the mechanism of VFD-induced shaft currents that damage pump and compressor bearings and details how electrically insulated bearings provide a robust solution to extend equipment life and reliability.
This guide explains the root causes of common-mode voltage in VFD applications, details its destructive impact on motor bearings and insulation, and provides actionable engineering solutions for OEMs and end-users.
This article explores how moisture, condensation, and chemical contaminants degrade the electrical protection of insulated bearings and provides actionable design and maintenance strategies to ensure reliability in harsh industrial locations.
This guide explains the critical role of electrically insulated bearings in preventing VFD-induced shaft currents, detailing their construction, benefits, and practical implementation strategies to maximize industrial motor reliability.
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