... S13-M.RL transformers, using S13-M.RL-500/10 transformer need more to pay :73550-65500 = 8050 (yuan ... ), but S13-M.RL-500/10 transformer to save annual operating costs than using S11-M. ... weight 230kg, the oil weight 270kg, S7-500/10 transformer scrap can recover 18,215 yuan; In addition, if ... ime investment required to purchase S13-M.RL-500/10 transformer 73550-18215 = 55,335 yuan, S13-M RL ...