Virtual Motor Best Practices Seminar - Day 1 - Static & Dynamic Testing for Motor’s State of Health скачать в хорошем качестве

Virtual Motor Best Practices Seminar - Day 1 - Static & Dynamic Testing for Motor’s State of Health

A motor’s health can be evaluated by using a combination of static and dynamic techniques. Static refers to tests that are performed on the motor while the motor is disconnected from the system typically during a maintenance shutdown, commissioning, manufacturing or repairs. During a typical static test, parameters such as winding resistance, inductance and impedance are measured. The status of the ground wall insulation system is also evaluated during static testing with tests such as insulation resistance, polarization index, dielectric absorption ratio, step voltage, high potential and partial discharge. The turn to turn insulation which is both the weakest spot and the place where most of the insulation failures begin in a motor is also evaluated during static testing using surge tests. The results of these tests are then trended over time to watch the evolution of the insulation system. Dynamic, in this context, refers to techniques used to monitor the electrotechnical system. Using the motor as a sensor, the operational environment of the motor can be evaluated. This is done by sampling the motor’s currents and voltages then by applying mathematical modeling techniques. While dynamic monitoring does not directly evaluate the motor’s insulation, it identifies factors in the motor’s environment that cause insulation degradation. Join us in this webinar to learn about both static and dynamic testing of motors, we will cover the common failure modes of motors as well as the typical insulation tests, winding tests and dynamic tests used to estimate their state of health. Click here to view our upcoming webinars: https://bit.ly/3oK5f6p