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随着我国综合机械化采煤的不断发展,我国自行设计研制的大功率综采机组和引进的大功率综采机组在井下的使用,出现了煤矿采区供电电压660伏不能满足综采工作面供电要求的情况。75年一机部、煤炭部相继下达了要求研制煤矿井下千伏级成套电气设备的文件。长沙变压器厂、通化变压器厂、太原变压器厂、沈阳高压开关厂、上海矿用电器厂、瓦房店防爆电器厂、沈阳变压器研究所和上海煤研所联合组成了千伏级矿用隔爆型
With the continuous development of China’s mechanized coal mining, China’s self-designed high-power fully mechanized mining unit and the introduction of high-power fully mechanized mining unit in the use of the underground, there has been a coal mining area supply voltage of 660 volts can not meet the power supply of fully mechanized mining face Required situation. 75 years a machine department, the Ministry of Coal have issued a document calling for the development of coal mine kilovolt-class complete sets of electrical equipment. Changsha Transformer Factory, Tonghua Transformer Factory, Taiyuan Transformer Factory, Shenyang High Voltage Switchgear Factory, Shanghai Mining Electrical Appliance Factory, Wafangdian Explosion-proof Electric Appliance Factory, Shenyang Transformer Research Institute and Shanghai Coal Research Institute jointly formed a kilovolt mine flameproof