Capacitor Motor Research Articles

Design of Capacitor Motors for Balanced Operation

THE PRESENT methods of calculating the full load performance of capacitor motors are quite long and tedious. A simple convenient method of calculating full load conditions is given in this paper, including the necessary theory and formulas.

Design of capacitor motors for balanced operation

THE PRESENT methods of calculating the full load performance of capacitor motors are quite long and tedious. A simple convenient method of calculating full load conditions is given in this paper, including the necessary theory and formulas.

Repulsion starting for capacitor motors

The characteristics of single-phase motors are improved considerably by the addition of a capacitor winding on the stator. High torque and low current during starting also can be secured by the use of a repulsion type of rotor.

The Revolving Field Theory of the Capacitor Motor

The paper presents an accurate theory of the split phase motor, both as regards starting and running performance. The general equations for an unbalanced two-phase motor are first derived, and the results are then applied to the special case of the capacitor motor. Evidence of the validity of the theory is given in the form of curves, comparing test results with calculations. The principal factors affecting practical capacitor motor design are discussed, and finally the performance characteristics of the motor are compared with those of repulsion-start induction motors. It is concluded that the capacitor motor has important advantages, which will justify its extensive use. The complete derivation of the theory is given in an appendix.

The Fundamental Theory of the Capacitor Motor

A fundamental theory of the motor and capacitor is given partly by the algebraic method and partly by graphical method. The variables in the design of a complete capacitor motor unit for any desired performance are discussed. A few examples of unbalanced phases and performance are given. The suitability for various classes of service is discussed briefly.

Abridgment of the revolving field theory of the capacitor motor

The paper presents an accurate theory of the split-phase motor, both as regards starting and running performance. The general equations for an unbalanced two-phase motor are first derived, and the results are then applied to the special case of the capacitor motor. Evidence of the validity of the theory is given in the form of curves, comparing test results with calculations. The principal factors affecting practical capacitor motor design are discussed, and finally the performance characteristics of the motor are compared with those of repulsion-start induction motors. It is concluded that the capacitor motor has important advantages which will justify its extensive use. The complete derivation of the theory is given in an appendix.