Field Test of MagnaDrive Adjustable Speed Drive Technology

A test was conducted by SCE in cooperation with Searles Valley Minerals, a raw materials mining and production company, at their Trona, California, plant. Facility operations involve use of a number of large 480 V and 4160 V motor and pump systems. For test purposes, Searles provided SCE access to a 75 horsepower 480 V motor-pump system in which the motor operated the pump at constant speed before being equipped with the MagnaDrive ASD system. The tests provided data to determine the operating characteristics and energy efficiency benefits of the motor with the MagnaDrive ASD system compared to operating the same motor-pump system in its original constant speed mode.