... China Southern Power Grid Co., Ltd. enterprise standard Q / CSG 11624-2008,5.7.ComparisonNote: S7, S11 ... save annual operating costs than using S11-M.RL-500/10 (GB) transformer:27084-22746 = 4338 ( yuan). ... Therefore, only a year and 10 months, We can recover the investment by the savings ... weight 230kg, the oil weight 270kg, S7-500/10 transformer scrap can recover 18,215 yuan; In ...