tender for renewal of emergency backup ups in various icu in periyar government hospital, periyar nagar, chennai-82.; 1 renewal by supply and fixing of 15kva (three phase input/ single phase output) microprocessor controlled double conversion true online ups system with built in isolation transformer and power factor correction with smf batteries for 1 hours backup time and with suitable ms powder coated rack for batteries and interlink cables complete with the following specifications: configuration true on-line double conversion ups system with pulse width modulation(pwm)technology using igbt inverter.rectifier :full wave (shall fully meet the specified input power requirements)nput:-176-280v(line-neutral), 305v-405v (line-lineoutput:- 230v± 1% frequency:- 50 hz ±0.1 %system dc voltage:- 360v (12v x 30 nos)inversion technology:-micro processor controlled, pwm with instantaneous sine wave control using igbt.charger :- built in solid state automatic float-cum boost charger with constant current, constant voltage mode of chargingalong with current limiting features. ripple in dc shall not exceed 2% when battery is disconnected. 2 protections(in built):-i. output under voltage.ii. output over voltage.iii. output over load.iv. output short circuit.v.hrc fuses-input/output/ battery.vi. battery low trip. vii. battery charging current limit.indications:-i. mains onii. inverter oniii. ups on batteryiv. load on upsv. battery lowvi. mains failurevii. overload tripviii. inverter tripmetering:-i. output ac voltageii. output dc voltageiii. frequencyterminals:-input- 4 pole mcboutput – 2 pole mcb 3 renewal by supply and fixing of stand for the ups batteries for 15 kva ups 4 renewal by supply and fixing of 3kva (single phase input/ single phase output) microprocessor controlled double conversion true online ups system with built in isolation transformer and power factor correction with smf batteries for 1 hour backup time and with suitable ms powder coated rack for batteries and interlink cables complete with the following specifications: configuration true on-line double conversion ups system with pulse width modulation(pwm)technology using igbt inverter.rectifier :full wave (shall fully meet the specified input power requirements)input:-230v± 15%output:- 230v± 15% frequency:- 50 hz ±0.5 hzsystem dc voltage:- 96v (12v x 8 nos)inversion technology:-micro processor controlled, pwm with instantaneous sine wave control using igbt.charger :- built in solid state automatic float-cum boost charger with constant current, constant voltage mode of chargingalong with current limiting features. ripple in dc shall not exceed 2% when battery is disconnected 5 protections(in built):-i. output under voltage.ii. output over voltage.iii. output over load.iv. output short circuit.v.hrc fuses-input/output/ battery.vi. battery low trip. vii. battery charging current limit.indications:-i. mains onii. inverter oniii. ups on batteryiv. load on upsv. battery lowvi. mains failurevii. overload tripviii. inverter tripmetering:-i. output ac voltageii. output dc voltageiii. frequencyterminals:-input- 2 pole mcboutput – 2 pole mcb 6 renewal by supply and fixing of stand for the ups batteries for 3 kva ups 7 renewal by supply and fixing of 40a 2p changeover mcb with enclosure on wall with earth connection 8 renewal by supply and run of 4 of 10 sq.mm. pvc insulated sc unsheathed frls copper conductor of 1100 v grade in suitable pvc rigd pipe on wall and ceiling with continuous earth wire connection of 10 sq.mm copper wire with painting of suitable colour. 9 renewal by supply and run of 2 of 10 sq.mm. pvc insulated sc unsheathed frls copper conductor of 1100 v grade in suitable pvc rigid pipe on wall and ceiling with continuous earth wire connection of 10 sq.mm copper wire with painting of suitable colour.