A programmable power supply which tests action characteristic of voltage relay is presented.
介绍了用于电压继电器动作特性测试的可程控交流电源。
Moreover, flow chart of the communication-capable voltage relay is given in the dissertation.
另外，文中论述了该继电器的软件设计思想并给出了流程图。
This device consists of self-coupling transfer, digital logic circuit and low voltage relay circuit.
它由自耦变压器、数字逻辑电路和低压小继电器电路组成。
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