Patent ID: 9399992
Filing Date: 2016-07-26
CPC Classification: F04B,F04D,G05B,G05D,H02H,H02P

Claim Text:
1. A pumping system for circulation of a fluid in a pool system, comprising: a pump means for circulating the fluid in the pool system; a motor means for driving the pump means; and a pump controller means for controlling the motor means with a variable speed drive means for driving the motor means, the pump controller means including a power factor correction means for maintaining a power factor of the pumping system at a substantially constant corrected power factor value during operation of the pumping system, the pump controller means including a current sensor means for sensing a current being provided to drive the motor means during operation of the pumping system, the pump controller means including a voltage correction means for maintaining a voltage of the pumping system at a substantially constant target voltage during operation of the pumping system, wherein the pump controller means is configured to detect a fault condition due to a variation in a load on the motor means when the current sensor means senses the current varying outside of a predetermined threshold.