Franklin Electric Co., Inc.
Motor drive system and method
Last updated:
Abstract:
A water pumping system, a motor drive, and a method of starting pumping by the motor drive. The method includes powering the electric motor with a motor drive; driving a progressive cavity pump with the electric motor; monitoring a speed difference between an electrical speed and an observed speed of a rotor of the electric motor; and performing a protective action as a function of the speed difference.
Status:
Grant
Type:
Utility
Filling date:
20 Oct 2017
Issue date:
29 Mar 2022