Electrical & Electronics Engineering
Permanent URI for this collectionhttp://197.211.34.35:4000/handle/123456789/131
Electrical & Electronics Engineering
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Item Performance Characteristics and Double Revolving Theory of Single Phase Induction Motor(Leonardo Journal of Sciences, 2013-12-23) Yahaya Asizehi ENESISingle phase induction motors are used in number of applications such as in offices, homes and in factories. Their numerous applications and immense importance lead to the study of the general characteristics of such motors. In this paper the input data of a given single phase induction motor without core loss is obtained from laboratory and the motor equivalent circuit is developed from the input parameters and this circuit helps to obtain the principle of double revolving theory. Determination of the output parameters from input parameters using circuit equations lead to the plotting graphs of the motor performance characteristics for the purpose of illustration. The paper also demonstrates the simulation of the steady-state performance by MATLAB programItem Analysis of non-salient pole synchronous generator using phasor diagrams(Leonardo Journal of Sciences, 2014-12-25) Yahaya Asizehi ENESI; Adamu Murtala ZUNGERU; Isah Agbogunde ADEMOHIn this paper, various performance equations are derived from phasor diagrams of a three phase non-salient pole (cylindrical rotor) synchronous generator of known armature resistance and of ignored armature resistance for lagging, unity and leading power factor load. These equations are used to calculate the output parameters of non-synchronous generator and to plot the graphs of terminal voltage-armature current, torque angle-armature current, torque angle-terminal voltage, power-torque angle and torque-speed characteristics through simulation by MATLAB program for the purpose of illustration.