Device, computer program product and computer-implemented...

H - Electricity – 02 – P

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H02P 31/00 (2006.01) E21B 43/12 (2006.01) F04B 47/06 (2006.01) F04B 49/06 (2006.01) F04D 13/08 (2006.01) F04D 15/00 (2006.01) H02K 11/00 (2006.01)

Patent

CA 2713749

A system for detecting a backspin condition of a motor in an electrical submersible pump is disclosed herein. The system comprises a sensor mounted proximate to the motor, the sensor outputting a signal, a power cable connected between a motor and a controller, the power cable supplying a three phase AC voltage to the motor, one phase of the three phase signal having a control signal thereon; electronics connected to the sensor, the electronics receiving the signal and propagating the signal to the controller; and a computer defining the controller, the controller having a non-transitory memory, a computer processor, and a computer program product stored on the memory and executable by the processor, the computer program product performing a process of controlling the variable speed drive of the motor and a process of monitoring the signal from the sensor to determine if the motor is backspinning.

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