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electrical-electronics-dian-qi-dian-zi

Electrical & Electronics 电器 电子

In engineering practice, the distinction between electrical engineering and electronics is usually based on the comparative strength of the electric currents used. In this sense, electrical engineering is the branch dealing with “heavy current”—that is, electric light and power systems and apparatuses—whereas electronics engineering deals with such “light current” applications as telephone and radio communication, computers, radar, and automatic control systems.

电子电器,全部或主要部分由电子器件和电子线路构成的电器元件或装置的总称。如接近开关、晶体管温度继电器、同步接触器等。在信号检测、故障监视与保护等环节上优先实现电子化,而通断强电的操作则较多由有触点电器完成,由于自关断器的发展,很多已由诸如晶闸管、绝缘栅双极型晶体管来完成。