Electronically enhanced low voltage motor protection and control

@article{Farag1993ElectronicallyEL,
  title={Electronically enhanced low voltage motor protection and control},
  author={S. F. Farag and R. G. Bartheld and W. E. May},
  journal={Conference Record Industrial and Commercial Power Systems Technical Conference 1993},
  year={1993},
  pages={166-174}
}
By examining the true operating characteristics of motors, a motor protection system is designed that closely models the effects of motor currents on the winding and housing temperatures. Experimentally determined parameters allow this model to track thermal performance, even when the motor is sitting still after tripping. This protection and control system, using the power of a microcomputer, can provide other modes of protection not available with the common thermal overload relay. Ground… CONTINUE READING