Abstract
The generated heat inside a motor is one of the main factors limiting a motor operation. Electrical submersible pump (ESP) motor is not an exception from this limiting factor. Running an ESP motor above the rated temperature can cause serious mechanical and electrical damages to the motor and finally result in motor failure. Therefore, an accurate prediction of motor internal temperature can help not only with expansion of ESP operating envelope, enhancement of motor reliability and run life, but also reduces operating costs and power consumption (carbon reduction). In addition to industry wide challenges to cool down motors, ESP motors have certain characteristics that make motor thermal management more challenging. ESP motors generally generate a lot of heat and heat dissipation is subject to environmental conditions (such as dynamic well multiphase fluid conditions, well bore geometry and chemistry etc.) that are not easily manageable.
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