Megger Low Voltage Motor testing Guide

Electric motors are made up of a large number of components that can be combined and assembled. A motor also has to withstand extreme electrical and mechanical operating loads, varying environmental conditions during its lifetime. To avoid premature failure, regular testing is necessary to ensure reliable operation and, most importantly, to extend engine life.

Electrical testing usually consists of insulation resistance tests (Meg Ohm MΩ) and low resistance tests (milli-ohm mΩ). These tests are essential in determining the health of an engine, however, these tests cannot detect all faults or early detection of potential faults. Conducting a range of different test types with each test providing a "puzzle piece" helps build a clearer picture that is essential in determining the health of the electric motor.

More about this in this guide.

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