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由机电部北京起重运输机械研究所与沈阳电气传动研究所组织天水长城控制电器厂、上海起重电器厂、苏州电气控制设备厂和大连低压开关厂联合设计的交流起重机低调速电控设备,于1992年11月30日在苏州市通过了由机电部第一装备司主持的产品鉴定。该产品是我国为交流起重机的保护与机构控制开发的新产品,主要包括QB1～7保护柜(屏)、QR1～2S起升机构控制柜(屏)、QR1～6Y平移机构控制柜(屏)和QRIZ抓斗机构控制柜
By the Ministry of Electrical and Mechanical Services Beijing Hoisting Machinery Institute of Transport and the Shenyang Institute of Electrical Transmission Tianshui Great Wall Control Electric Factory, Shanghai Lifting Appliance Factory, Suzhou Electric Control Equipment Factory and Dalian low-voltage switchgear joint design of the exchange crane low speed electronic control equipment , On November 30, 1992 in Suzhou City, adopted by the Ministry of Mechanical and Electrical Equipment Division presided over the first product identification. The product is a new product developed by our country for the exchange crane protection and organization control. The product mainly includes QB1 ~ 7 protection cabinet (screen), QR1 ~ 2S lifting mechanism control cabinet (screen), QR1 ~ 6Y translation mechanism control cabinet (screen) And QRIZ Grab mechanism control cabinet