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.
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。
Jinan precise scientific instruments co., LTD. Was founded in 1991, the production of box resistor-stove has successfully exported (OEM) to Japan, Russia, South America and other countries.
济南精密科学仪器仪表有限公司成立于1991年，生产的箱式电阻炉已成功出口(OEM)到日本、俄罗斯、南美等国。
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