ANALISIS EFISIENSI MOTOR INDUKSI PADA KONDISI TEGANGAN NON RATING DENGAN METODE SEGREGATED LOSS

Samuel Sudibyo. P, M. Khairul Amri. Rosa, Afriyastuti Herawati(1),
(1) , Indonesia

Abstract


Induction motor is the most widely used motor in industry, but the problem of voltage instability from PLN that the motor work at out of its rating (non rating), make poor performance of induction motor, one of the problem is decrease of efficiency. Condition of non rating motor voltage (undervoltage and overvoltage) will decrease quality of induction motor. This is important to evaluate the motor to know  its condition. One of the best method for it is segregated loss method  based on IEEE-112 standart. With this method can be evaluated the condition of induction motor without stopping the motor. This method use induction motor parameters such as motor current, input power and slip to analyze power losses of motor. Evaluation results of induction motor with segregated loss method are the highest efficiency at  0.86 N.m loading of 52.979% for nominal voltage, 46.6% for undervoltage and 51.94 for overvoltage. Efficiency at 0.97 N.m loading is 52.258% for nominal voltage, 48.68% for undervoltage and 51.94% for overboltage. Efficiency at 1.2 N.m loading is 52.979% for nominal voltage, 51.24% for undervoltage and 53.24% for overvoltage.

Keywords


efficiency; IEEE-112; overvoltage; segregated loss; undervoltage

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