supply of transformer for tfbc-10 amp to irs s.89/2013 ver. 1.0 along with holding bracket & fixing accessories transformer as per rdso specification irs-s-89/2013 ver.transformer for tfbc-10 amp to irs s.89/2013 ver. 1.0 along with holding bracket & fixing accessories transformer as per rdso specification irs-s-89/2013 ver.,transformer for tfbc-10 amp to irs s.89/2013 ver. 1.0 along with holding bracket & fixing acc essories transformer as per rdso specification irs-s-89/2013 ver. 1.0 transformer used shall be impragnat ed and shall be of natural air cooled type and shall be confirm is:6297 class-f for higher grade insulating material as per is:1271 and polyster enameled copper winding wire confirming to is:13730 (pt-3) shall be used for windin g transformer.lnput voltage -0-90-100-110 v ac output voltage- (0-3.8- 5.54-6.92-8.31)+/-0.2v at the load of 5.0 amp dc load sensure voltage -15.21 vac. auxiliary winding voltage 15.24(+/-2) v, voltage regulation less than 5%,voitage current less than 10% of the full load current along with holding bracket and fixing accessories.fourt h tapping 10 amp. dc load -8.12 volt efficiency not less than 95%. [ warranty period: 30 months after the date of delivery ]