Insulation endurance test of stators/rotors

Stator endurance test: focusing on durability and reliability

While many insulation testers on the market have been developed for quickly checking the insulation resistance of stators, AUTFORCE goes one step further. Our insulation endurance tester offers you the opportunity to test stators for their insulation quality over long periods of time and thus check or prove their durability. This is necessary for an initial quality inspection or for further development.

Insulation tester for electric motor stators

This new product makes it possible to measure stator insulation under realistic operating conditions. The stator is placed in an automated temperature-controlled oil bath to ensure its conditioning. The tester offers the possibility to flexibly parameterize the effective current and the switching frequency (PWM), while the edge steepness du/dt (up to 20kV/µs) can be adjusted according to the test requirements. A special feature is the check of the total current (observation of the star point) of the stator phases, whereby the test run is automatically interrupted and checked for damage if the insulation is damaged.

Why are insulation endurance tests essential?

There are only a few solutions on the market that can perform comprehensive stator insulation measurement over long periods of time. Conventional testers only provide a snapshot of insulation resistance, whereas our insulation endurance tester simulates stators and rotors under real conditions and checks long-term performance. This makes it possible to detect insulation damage in good time and thus significantly improve the service life and quality of your components.

Key features of the insulation long-term tester

• Long-term monitoring of the insulation quality under realistic operating conditions
• Automated temperature control in the oil bath
• Flexible adjustment of effective current and switching frequency (PWM)
• Adjustable edge steepness du/dt up to 20kV/µs
• Automatic fault detection and interruption of the test run in the event of insulation damage