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三门变压器厂根据国家进一步开发低损耗变压器的趋向,已于1986～1987年间试制成功S_9系列第二代低损耗变压器,并从西德引进全斜铁心切割自动线完善工艺,共试制17台,技术性能符合国家标准和S_9系列技术条件,S_9空载损耗P_0比SL_7系列平均下降7.95％,负载损耗Pk比SL_7平均下降24.15％,性能达到意大利产品八十年代初期水平。该产品已经工厂出厂试验和上海华通开关厂冲击电压试验及短路电流试验全部合格,已于去年12月27日由省机械厅委托台州地区工业局主持鉴定会议通过了鉴定,认为该产品已
Sanmen Transformer Factory has successfully developed S_9 series second-generation low-loss transformers from 1986 to 1987 based on the country’s trend of further development of low-loss transformers, and introduced the full-oblique core cutting automatic line processing technology from West Germany, making a total of 17 trials. Performance in line with national standards and S_9 series technical conditions, S_9 no-load loss P_0 than the SL_7 series decreased by an average of 7.95%, load loss Pk than SL_7 on average decreased by 24.15%, performance reached Italian products in the early 1980s. The product has been factory tested and the Shanghai Huatong Switchgear factory has been qualified for both the impulse voltage test and the short-circuit current test. On December 27 last year, the Provincial Machinery Department entrusted the Taizhou Regional Bureau of Industry to pass the appraisal and held that the product has