分析了箱式电阻炉电气系统的工作原理及其局限性，介绍了采用交流固态继电器对电气系统进行改造的原理和实践。
This paper analyzed the working principle and limitation of electrical system of box resistor-stove. And introduced the principle and practice to remake this system with ac SSR.
本文对固态继电器测试仪原理框图，以及工作测试原理进行详细介绍。
The functional block diagram and the testing working principle of the solid state relay testing device was introduced in detail.
介绍了利用固态继电器组成的电机控制、保护、运行状态显示装置的电路组成和工作原理。
This paper exemplifies the circuit construction, the function and working principle of the device of control, protect and working state display of electric maching using solid state relay.
主要介绍固态继电器的工作原理及其在化纤工业中的应用，并就使用中的注意事项作了说明。
This paper analysed the working principal of SSR and described its main use in chemical-fibre industry.
主要介绍固态继电器的工作原理及其在化纤工业中的应用，并就使用中的注意事项作了说明。
This paper analysed the working principal of SSR and described its main use in chemical-fibre industry.
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