交流电

The electro-magnetic microgenerator utilizes a moving magnet or coil for inducing an alternating electric current in a circuit.

微型电发电器以移动铁或线圈，在电路制造出感应交流电。

AC Milliammeter, Model J0414, is suitable for the laboratories of middle schools and polytechnic schools to measure current intensity in the AC circuit.

J0414型交流毫安表适用于学、专等实验室测量交流电路电流强度。

The result shows that CJD alternating current electrodynamometer has simple structure and the energy feedback efficiency can reach 74%, with outstanding energy-saving effect, good control stability.

运行结果表明，该CJD交流电力测功机控制性能稳定，可靠性好，节能果显著，能量率最高可达到74%。