Prevent Motor Failures Before They Happen: The Power of Partial Discharge Testing

A Critical Guide to Detecting Early Insulation Breakdowns and Ensuring Long-Term Motor Reliability

Innovative Test & Measurement Technology for Motors and Generators ​

The document discusses the importance and methodology of partial discharge testing in electric motors, particularly in the context of variable frequency drives (VFDs) and high-voltage applications, to assess insulation integrity and prevent catastrophic failures.

Summary for Partial Discharge Testing Paper Download

Enhancing Motor Reliability with Partial Discharge Testing

(Authors: ​ Dipl.-Ing. Jan-Philipp Lahrmann, Dipl.-Ing. ​ Martin Lahrmann)

As the use of Variable Frequency Drives (VFDs) continues to grow, ensuring the reliability of low-voltage electric motor insulation has never been more critical. Partial Discharge (PD) testing is a vital method for detecting early insulation failures that could lead to costly motor breakdowns and operational disruptions.

This comprehensive paper provides a detailed explanation of PD testing, including:

✅ What is Partial Discharge? –  Learn how insulation defects lead to breakdowns.

✅ Causes & Consequences –  Understand how undetected PD can erode insulation over time, leading to catastrophic motor failure.

✅ Testing Techniques –  Compare high-voltage tests, surge tests, and PD inception/extinction voltage analysis.

✅ Applications & Best Practices –  Discover why PD testing is crucial for motors operating under VFDs, high-voltage conditions, and industrial environments.

With insights from Schleich’s industry-leading test technology, this paper is an essential resource for maintenance teams, motor repair professionals, and manufacturers looking to improve motor longevity and performance.

📥 Download the Whitepaper Now and take a proactive step in motor insulation health monitoring!

PD testing is essential for both manufacturing and maintenance of electric motors. SCHLEICH offers reliable PD testing equipment, combining high-voltage and surge tests, ensuring comprehensive motor diagnostics. ​

For more information, visit Our website or contact our sales team.

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Contact: ​ MOTOR DIAGNOSTIC SYSTEMS, INC. ​ 6387 Aviation Circle, Loveland, Colorado, 80538 ​

Email: inside.sales@mdsusa.net ​ Phone: +1 (970) 461-1348 or +1 (877) 461-1348 ​ Fax: +1 (866) 223-0800 ​