Title :
True and false energy-saving devices
Author :
Emanuel, Alexander E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst., MA, USA
Abstract :
This paper explains the mystifying performance of a nonlinear capacitance used as a passive energy-saving device (ESD). According to the law of energy conservation, such ESDs cannot improve motor efficiency. Theoretical and experimental studies prove that the bulk of the perceived “energy savings” are caused by the current transformer´s phase-angle error
Keywords :
capacitance; current transformers; electric motors; energy conservation; power transformers; current transformer phase-angle error; energy conservation; energy savings; motor efficiency improvement; nonlinear capacitance; passive energy-saving device; Chemical technology; Cogeneration; DC motors; Electrostatic discharge; Energy conversion; Energy loss; Fuels; Power engineering and energy; Power generation; Synchronous motors;
Journal_Title :
Industry Applications, IEEE Transactions on
