supply of 6 kva online ups supply of 6 kva online ups for mech department , 6 kva online ups: , 6 kva online ups 6 kva online double conversion igbt based h-bridge pwm technology using micro controller under low supersonic frequency 12 khz switching 120 vdc operated ups with wide range individual step down and step up transformers for converting and inverting 1 hour backup using 12 v, 42 ah smf battery – 10 nos. input parameters: input supply: 1f input, 230 vac + 10% input frequency : 50 hz + 1% dc converter: bridge rectifier using 96 amps thyristor module with lc filters dc volt at charging: 135 vdc floating dc current control: using 75 amps dc shunt dc fuse protection: using 63 amps black lite carrier with hrc fuse link input fuse protection:using 63 amps black lite carrier with hrc fuse link output parameters: output supply: 1f220 vac + 0.5% output frequency : 50 hz + 0.1% inverter bank: h-bridge using two nos. of 150 amps igbt module inverter transformer: step up transformer primary : 0-65 vac, 60 amps secondary: 0-230 vac, 30 amps inverter protection: using 63 amps black lite carrier with hrc fuse link output fuse protection: using 63 amps black lite carrier with hrc fuse link by-pass switch provision provided by 40 amps rotary switch display: lcd / led display for output volt, dc volt led indication: mains on / input on, inverter / ups on, dc low, over load