Megohmmeters (meggers) are electrical meters used to check the resistance and condition of the motor windings and the condition of the refrigeration and oil environment around the motor windings. A ...

This article describes the testing results following routine performance assessment of an electrical motor both in its original state and after rebuilding it using products made by Zeus, such as the ...

This article discusses the evaluation of a small 0.75 hp, 4-pole, 460 V, AC induction motor. The original insulation system of the motor was a typical Class 155C (Class F) material with a Class F lead ...

Motor and drive system technology continues to advance throughout the industry. Oftentimes, this increased complexity presents a challenge to the teams who are making sure the equipment runs at peak ...

Partial discharge (PD) is defined as a localized, high-frequency arcing that only partially bridges the insulation between multiple conductors or between conductors and the ground wall of an ...

HIOKI recently announced the launch of the Impulse Winding Tester ST4030, which is the company’s first instrument to provide functionality for testing for defects in motor windings. HIOKI provides a ...

The dynamic operation requirement for grid flexibility provision (e.g., load shifting and frequency regulation) can cause accelerated aging of electric motors. For example, the left plot of the figure ...