Reactive power compensation in squirrel cage rotor type of three-phase induction motors

The purpose of this study is to produce: (1) The average real power in squirrel-cage rotor type of three-phase induction motor load. (2) The average reactive power in squirrel-cage rotor type of three-phase induction motor load. (3) The best capacitor value for saving reactive power in squirrel-cage rotor type of three-phase induction motor load. The research method used is a quantitative description approach by applying measurement methods in the Laboratory of Department of Electrical Engineering Education, Nusa Cendana University, Kupang. The study population was the entire squirrel-cage rotor type of three-phase induction motor controller using the star to delta method. The sample is a number of measurements of voltage, current, and power ion n a three-phase induction motor using the star to delta method. The conclusions of the research are: (1) The average real-power for delta-connection load without capacitor obtained a value of 24.4 [Watt]. The average reactive power for deltaconnection load without capacitor obtained a value of 205 [VAR]. (2) The average-real power for delta-connection load with the capacitor of 11.57 [mu F] obtained a value of 9,9 [Watt]. The average reactive power for delta-connection load with the capacitor of 11.57 [mu F] obtained a value of 9,4 [VAR]. (3) Capacitor value 11.57 [mu F] is the best value for reactive power savings in squirrel-cage rotor type of three-phase induction motor.