The saving energy control system is proposed for problem of oil drawing machine electric driver which efficiency and power factor is low.
针对抽油机电驱动装置效率和功率因数低、耗能严重的问题，研制了一台新型的抽油机节能控制系统。
High efficiency of transformer is an important task of electric distribution equipment energy-saving.
变压器高效率化是变配电设备节能的重要课题。
Electric bicycle with energy feed back by the use of DSP and permanent magnet synchronous motor (PMSM) has good foreground because of its energy-saving and high energy efficiency.
DSP控制同步电机并能实现能量回馈的电动助力车，由于其可以实现可逆能量的控制，具有节能高效的特点，有很好的发展前景。
The frequency control device of the blower motor for the Soviet BJI85 electric locomotive is introduced in regard of its energy saving efficiency and operation principle of the circuit.
本文介绍了苏联（?）85电力机车风机电动机变频调速装置的节能效果及其电路的工作原理。
Electric supply of filament adopts constant voltage device, which has high voltage stabilizing accuracy, long life and distinct energy-saving efficiency.
灯丝供电采用恒压器，稳压精度高，寿命长，节能显著。E。
The electric cooker of the utility model has the advantages of high structure intensity, good insulating property, high heat efficiency, low power consumption and distinctive effect of energy saving.
本实用新型的电饭煲结构强度高，保温性能好，热效率高，耗电量少，节能显著。
The electric cooker of the utility model has the advantages of high structure intensity, good insulating property, high heat efficiency, low power consumption and distinctive effect of energy saving.
本实用新型的电饭煲结构强度高，保温性能好，热效率高，耗电量少，节能显著。
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