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国内科技小报和杂志上刊登的一些交流电焊机空载自动断电装置,自控方式很多,控制线路虽各有差别,但均是由在初级侧串入电容,在次级侧获得一电压作为启动动作电源用。这样,在电焊机空载时,仍然带有一小部分负载,续继在消耗一小部分电能。我们从使电焊机空载时完全不耗电这点出发,研究制作了如图所示的一种电焊机空载自控装置。该装置具有线路简单、无需电流继电器、空载完全不再耗电等优点,同时,制作简单,使用方便。现介绍如下:
Domestic science and technology tabloids and magazines published some of the AC welder no-load automatic power-off device, a lot of self-control, although the control lines are different, but by the primary side of the string into the capacitor in the secondary side to obtain a voltage as a start Action power supply. In this way, when the welder is no load, still carry a small part of the load, continue to consume a small part of the power. Starting from the point that the electric welding machine does not consume power at all during no-load, we researched and produced a kind of automatic control device of electric welding machine as shown in the figure. The device has the advantages of simple circuit, no current relay, no load and no power consumption at the same time, simple manufacture and convenient use. Now introduced as follows: