Method and An Arrangement for Starting Pumping with A Submersible Centrifugal Pump for Pumping Fluid
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United States of America Patent
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Issued Date -
Jan 4, 2024
app pub date -
Jun 26, 2023
filing date -
Jul 1, 2022
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Abstract
A field of controlling pumps and pumping plants and installations, such as electrical devices and installations used for controlling pumps and pumping plants and installations, and more particularly to a method and an arrangement for starting pumping with a submersible centrifugal pump for pumping fluid. In the arrangement for starting pumping with a submersible centrifugal pump for pumping fluid, the arrangement including a submersible centrifugal pump and an electric drive apparatus arranged for controlling the motor of the submersible centrifugal pump, the electric drive apparatus is arranged: for starting an accelerating ramp for ramping up the speed of the motor of the submersible centrifugal pump; for monitoring the torque of the motor of the submersible centrifugal pump versus pump motor speed; and upon detecting a significant increase in the derivate of monitored torque versus pump motor speed, for starting an operational pumping ramp for the motor of the submersible centrifugal pump.
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