Tender For supply of 7.5 kva, 110 volt dc sinewave inverter with pwm & microcontroller based igbt technology as per is:13314. input voltage 90-140v dc, output voltage-230v ac 50hz, fuse protection at output, dc high voltage & overload transformer suitable to accommodate onboard in officers saloons/inspection coaches. transformer must have copper winding only and confirmation certificate to be submitted for copper winding transformer. type of enclosure - crca steel.size of inverter is 60x25x55 cm (lxbxh) or less.