bids are invited for online ups (?10 kva) without battery conforming to is 16242 (part 1) (q2) - supply, installation, testing, and commissioning of a 10 kva online ups system with three-phase input and single-phase output, based on double conversion (ac–dc–ac) topology, having a 192v dc bus. the ups shall operate with an input voltage of 415v and frequency range of 40–70 hz, maintaining an input power factor of ≥0.99. the output shall provide 220/230/240 vac, with synchronized frequency in mains mode and 50 hz ±0.1 hz in battery mode, delivering a pure sine wave with unity output power factor, crest factor of 3:1, and thd of ≤3% (linear load) and ≤5% (non-linear load). the system shall include an inbuilt galvanic isolation transformer at output, with minimum 90% efficiency at full load.the ups shall be equipped with comprehensive protections including overload, short circuit, over/under voltage, over temperature, surge protection, and static bypass, along with lcd/led display, audible alarms, and communication interfaces such as rs-232/usb with optional snmp. the system shall comply with iec 62040 / is 16242 standards, with bis/ce/iec certification, and be supplied with a minimum 3-year onsite warranty. , buyback and disposal of the existing 7.5 kva ups system (non-functional condition), approximately 12 years old total quantity : 1