Customer Adjustable-Speed Drive Motor Failure Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Customer Adjustable-Speed Drive Motor Failure Evaluation, Document ID: PQS1010, Date: October 15, 2010. Abstract: This case study presents a customer adjustable-speed drive motor winding failure analysis. The study investigated the potential for severe high frequency transient overvoltages at induction motor terminals for an adjustable-speed drive that utilized aContinue reading “Customer Adjustable-Speed Drive Motor Failure Evaluation”

Variable Frequency Drive (VFD) Testing Applications

Published by Dranetz Technologies, Inc. VFD motor controls have become very popular for both retrofits and in new applications. They offer increased energy efficiency, potential for less motor wear, lower startup currents and more. Potential disadvantageous include producing harmonics and damaged motors if they are not controlled properly. VFD’s use a Pulse Width Modulated (PWM) voltageContinue reading “Variable Frequency Drive (VFD) Testing Applications”