Transfer switch a transfer switch is an electrical device for switching loads between alternatepower sources.
转换开关转换开关是能够把负载在备用电源和常规电源之间进行转换的电气设施。
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On the basis of active power filter linear shunt transformer harmonic impedance control, a novel principle for high voltage alternatepower distribution systems is proposed.
针对高压交流配电系统，提出一种基于线性并联变压器谐波阻抗控制的并联型有源电力滤波器新原理。
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Use your hand to power the hoop in a back-and-forth motion: the hoop will alternate between hitting the center of your palm and the back of your hand.