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The manufacturer assessment during the design stage inception for potential resonances near any predicted operating force as well as the overall system amplitude response is essential to ensure the proper field operation. Using a model that takes into account the magnetic and mechanical loads it is possible to optimize the design and improve reliability, minimize resonances and reduce vibration amplitudes...
This paper presents different aspects of using temperature sensors as a part of the motor thermal model. Different types of sensors, mostly used on medium voltage machines, are presented. The most common solutions of building sensors into motor windings are described. The differences between induction and synchronous motors are discussed regarding the benefits of temperature sensor usage. It is considered...
This paper outlines a set of useful calculations and design guidelines for motor temperature rise prediction. The steady-state analysis is presented, allowing a general view about the expected temperature rise in the stator winding. For transient conditions, the starting and stall phenomena are modeled considering the factors that are often neglected: the skin effect and the heat exchange from the...
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