【摘要】 本文论述了大功率异步电动机节能控制器的电路 原理及其对30kW异步电动机的节能试验结果。该节能 控制器采用双向晶闸管。通过检测反映负载大小的异 步电动机的电压与电流的相位角,自动调节端电压。 在节能效果和突加负载响应等方面已达到八十年代国 外同类产品水平。更多还原

【Abstract】 The article expounds the circuit principle of energy-saving controller of high-power asynchronous motor and the energy-saving test results of a 30kW asynchronous motor. Adopting bi-direction thyristor, the energy-saving controller automatically regulates the terminal voltage of the asynchronous motor by measuring the phase angle between the voltage and current, which reflect the amount of load of asynchronous motor. Its energy-saving efficiency and the respond to the real load, etc, have reached the same level of the current similar products made abroad.更多还原