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一、前言国产煤矿井下采区千伏级成套电气设备,是原一机部电工总局所属有关研究所和制造厂在煤炭部科技局有关所、矿大力支持下,按各专业分工负责研制的。此项目早在1975年,根据当时煤矿工业向综合机械化开采发展的需要,先后开展28项74种规格的千伏级和660伏电气设备新产品(包括元件)的设计和试制。设计中既总结了煤矿井下使用条件的特殊性,又吸收了国外矿用电气设备的先进技术。实践证明,煤矿用电气设备决不等于普通型低压电器加上隔爆外壳。成套电气设备于1978年完成试制任务,1979年秋投入煤矿工业性试验,负责工业性试验单位为大同矿务局同家梁矿、阳泉矿务局三矿、涟邵矿务局金竹山矿以及开滦矿务局唐山矿。两年来的工业性试验表明,千伏级成套电气设备的主要
I. Preface The domestic kiln-volt complete sets of electrical equipment in the domestic coal mine are the research institutes and manufacturing plants owned by the former Ministry of Electrical Engineering under the support of relevant institutes and mines of the Bureau of Science and Technology under the Ministry of Coal Industry. As early as 1975, according to the needs of the coal mining industry at that time for the development of comprehensive mechanized mining, this project successively carried out the design and trial production of 28 new products (including components) of 74 kilovolt and 660 volt electrical equipment of 74 specifications. The design not only summarizes the particularity of coal mine conditions of use, but also absorbs the advanced technology of foreign mining electrical equipment. Practice has proved that coal mine electrical equipment is never equal to ordinary low-voltage electrical appliances plus flameproof shell. Complete sets of electrical equipment in 1978 to complete the trial task, the fall of 1979 into the coal mine industrial test, responsible for the industrial test unit for Datong Mining Bureau Tongjialiang, Yangquan Mining Third Mines, Lianyao Mining Jinzhushan Mine and open Luan Mining Bureau Tangshan Mine. Two years of industrial tests have shown that the main kilovoltage complete sets of electrical equipment