Abstract:

Asynchronous engines widely located in many machines from industrial applications to our homes, and cause less malfunctions with low maintenance costs, also they are used in milking machines. In this study, asynchronous motors' resistance efficiency is investigated when engine is cold. And under nominal load, power and current values when the motor is running at no load, torque, current and input power values with locked rotor test, overturning torque results, under full load at different voltages and constant voltage, were investigated in a dynamophrene test device for the asynchronous engine. The results of current, power, torque and efficiency at different loads were investigated. The results of current, power, torque and efficiency at loads were examined. Afterwards, the voltage, current, power and revolution numbers of the asynchronous engine attached to the milking machine were kept constant at different vacuum values, and the changes in the current, power and number of revolutions at different voltage values by keeping the vacuum constant were investigated. In this experimental study, Volt brand asynchronous motors 90-4 type 0.55 kW asynchronous engine and Enka agricultural milking machine with Sezer brand vacuum pump were used. According to the experimental results, the efficiency value varies between 50.4% and 68.4% when the asynchronous motor is at full load and under different voltages. In this study, the energy consumption and performance of asynchronous engine were investigated in respect of voltage changes, temperature changes and full load operations which is used in milking machines in different regions.

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