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. 1.0transformer 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. 1.0,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. 1.0 transformer used shall be impr agnated and shall be of natural air cooled type and shall be confirm is:6297 class-f for higher grade insulat ing material as per is:1271 and polyster enameled copper winding wire confirming to is:13730 (pt-3) shall be used for winding 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.fourth tapping 10 amp. dc load -8.12 volt efficiency not less than 95%. [ w arranty period: 30 months after the date of delivery ] ]