Partial discharge testing on rotating electrical machines

Learn about the importance of partial discharge testing (PD testing) on rotating electrical machines, such as generators and electrical motors. Partial discharge is a major cause and reliable indication of developing insulation defects in the stator windings of motors and generators, which can cause their eventual failure and costly outages. PD testing is an effective diagnosis method used to detect and localize insulation defects and to evaluate the overall insulation condition and risk of failure in rotating electrical machines during factory testing, site acceptance testing (commissioning), as well as in-service troubleshooting for effective maintenance planning. For highly reliable, industry-standard PD testing on motors and generators, OMICRON recommends the MPD 800 universal partial discharge measurement and analysis system.

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