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Offline Testing on Rotating Electrical Machines

Rotating electrical machines are critical for power generation and running critical processes in industrial applications. However, performance and reliability can be compromised over time due to the thermal, electrical, ambient and mechanical stresses motors and generators are continuously subjected to when in operation.

We have identified a set of essential off-line electrical diagnostic methods that will help you to perform complete on-site condition assessments of your motors and generators.

Literature

Diagnostic Testing and Monitoring of Rotating Machines Brochure (3 MB)

Article - Why Rotating Machines Fail (423 KB)

Article Electrical Testing on Rotating Machines - 2020 ENU (188 KB)

Article - Capacitance and Dissipation Factor Measurement - 2020 (171 KB)

Article - Partial Discharge Measurement on Rotating Machines - 2020 (683 KB)

Article - Partial Discharge Monitoring on Rotating Machines - 2020 (281 KB)

Article - Stator Core Condition Assessment - 2020 (272 KB)

Solutions

Partial Discharge Measurement and Analysis on Rotating Machines

Partial discharge (PD) occurs in the stator insulation system of rotating machines, where local…

Dissipation/Power Factor and Capacitance (Tan Delta) Measurement on Rotating Machines

The insulation is the most sensitive part of rotating machines. The lifetime of a stator winding…

Stator Electrical Tests

In addition to dissipation/power factor measurements, partial discharge measurement and analysis and…

Electromagnetic Imperfection Testing

The electromagnetic imperfection test (also known as a stray flux measurement) is performed to…

Contact Resistance Measurement on Rotating Machines

Contact resistance measurements are performed to detect loose connections as well as oxidized or…

Pole Drop Testing on Rotating Machines

Mechanical stress in rotor windings cause inter turn faults (short circuits), which can lead to…

Inter Turn Fault Detection on Rotating Machines

Sweep Frequency Response Analysis (SFRA) is used to detect inter turn faults caused by mechanical…

Products for Offline Testing on Rotating Electrical Machines

Primary Test Manager (PTM)

Videos

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