【本刊讯】山邯邢冶金矿山管理局磁山铁矿和长沙矿山研究院组成的交流电机车三结合试验组,高举“鞍钢宪法”的光辉旗帜,经过四年来的努力,制成一台可控硅变频调速装置并把它用在7吨交流电机车上,于1976年4月在磁山铁矿西采场进行工业试验。试验三个多月,纯生产106个班,拉车1166趟,共运输矿石二万多吨,运行平稳可靠,起制动平滑、无冲击、没 【Benxi hearing】 Shan Handan Xing Metallurgical and Mineral Administration Mingshan Iron Mine and Changsha Institute of Mining formed a combination of AC locomotive test group, holding high the “Angang Constitution” glory banner, after four years of efforts to make a SCR frequency control device and put it used in 7 tons of AC motor vehicles, in April 1976 in the magnetic iron ore west field industrial test. Test more than three months, the pure production of 106 classes, 1166 pull carts, transport a total of more than 20,000 tons of ore, smooth and reliable operation, smooth braking, no impact, no