Iyo 1.2 tani bhatiri locomotive inoshandiswa yekumhanyisa kutonga kweIGBT controller mhando kana AC controller.Iyo ine mabhenefiti eiyo yakakwirira yekutanga torque, yakasimba traction simba uye kutakura kugona, kugona kwesimba uye kuderera kwekugadzirisa basa.Iyo inoshandiswa zvakare kune ese ari maviri mhepo inonyorovesa uye yemagetsi braking mabasa uye inogona kushanda zvakachengeteka.