procurement of commentators , item description , commutator for 130 / 150 hp crowd motor of 182m marion shovel , 475 v 260a , 1100 rpm , as per drg . no . cemw / 8974 ( no . of segment - 171 ) ( drawing no 8974 ) , commutator for 112 . 5kw c / p generator of p&h shovel , 250v , 450 a , 1750rpm , as per drg . no . cemw / 9841 ( no . of segment - 210 ) ( drawing no 9841 ) , commutator for 70hp crowd motor of p&h shovel 230v , 260a , 1500rpm , as per drg . no . cemw / 10220 ( no . of segment - 147 ) ( drawing no 10220 ) , commutator for 54kw c / propel motor of ekg / hec 4 . 6 / 5 . 0 cum shovel ( kec make ) , 395v , 150a , 1200rpm , as per drg . no . cemw / 7967 ( no . of segments - 129 ) ( drawing no 7967 ) , commutator for 506 kw , 475 volts , 1500 rpm , 225 amps hoist generator of 182m shovel , insulation class-h , as per drawing no . 10381 segments-186 . ( 36a161942fag03 ) ( drawing no 10381 ) , commutator for 54kw crowd / propel motor ie make as per drg . no . 11997 , 395v , 144a , 1200 rpm of ekg / hec 4 . 6 / 5 . 0 cum shovel ( no . of segments-141 ) ( drawing no 11997 ) , commutator for 15kw exciter generator ie make as per drawing no . 12147of ekg / hec 4 . 6 / 5 . 0 cum shovel . ( no . of segments-141 ) ( drawing no 12147 ) , commutator for 45 / 50kw crowd gen . ( kec ) of ekg 4 . 6 shovel , 375v , 120a , 1480rpm , as per drg . no . cemw / 8865 ( no . of segment 185 ) ( 6lk6700282 ) ( drawing no 8865 ) , commutator 155 segments as per drawing no . 7395r for 12 / 15kw exciter generator ussr / bhel , ekg 4 . 6 shovel ( drawing no 7395r )