RMO Electrical and Mechanical Services at Delhi Vidhan Sabha, Old Sectt., Delhi. (SH- SITC of Seamless Power Supply System).

Supplying, installation, testing and commissioning of 120 KVA (Three Phase Input & Three Phase Output) Modular UPS System with isolation transformer high performance IGBT-based APFC (Active Power Factor Correction) rectifier combined with DSP-controlled three-level IGBT inverter, delivering true double-conversion online operation, integrated aluminium wound K4-rated input isolation transformer provides galvanic isolation and superior compatibility with non-linear loads. Fully compliant with IEC 62040-3 performance standards, ensuring high reliability, power quality, and protection for mission-critical applications. module based Monolithic UPS with a modular architecture (2 power module) with fault tolerant design power modules designed for rapid serviceability, ensuring low Mean Time to Repair (MTTR) and high Mean Time Between Failures (MTBF) for maximum system availability and reliability.

Battery Type : Lithium Ion ; Type of Chemistry: LFP / LMO / NMC ( Either of these can be applicable ) Cell Voltage Nominal : 3.20 ~ 3.70V nominal as applicable to chemistry; typical operating range 2.5~4.2V/cell Cycle life (6C, 25 °C) : >2500Cycles @ 80% DOD ; Design life (25 °C) : 15Yrs ; Operating Temperature: 0 ~ 50℃ ; Short circuit current : Minimum 5kA for < 10ms Thermal Management : Air cooling ; Internal Resistance Fully Charged@ 25 ℃ ≤ 120mOhms ; Protections: Over Charge & Under Charge Protection, Over discharge Protection, Temp Protection, Short Ckt Protection, Over Current Protection, Battery Cut Off Protection & Insulation Protection ; IP rating : IP20 Communication interface : Color Touch Screen Display for real time Cell and System monitoring and supervising , RS485 & CAN & TCP / IP, Dry contacts, Battery Bank Paralleling interface ; Emergency Stop : Emergency Stop Push Button shall be provided to isolate battery Strings. Certification : UL1973 certification for Safety, UL9540A for evaluating the thermal runaway fire propagation, IEC62619 / EN61000-6-2 / EN61000-6-4 / CE Certification, Material Safety Data Sheet (MSDS) report Lithium Ion Battery cabinet should have Integrated Battery Management System (BMS)

allows for full monitoring and control in cell level, module level & rack level for optimizing the usage and performance of the battery. Battery Management System shall test the relative charge state and health of each individual cell by injecting a DC current, recording the magnitude of this current & comparing it to previous benchmark values. Systems that require battery discharge for testing are not acceptable. The system shall provide estimated backup time remaining during an actual discharge. The Battery Management System shall monitor and maintain historical files for: a) Individual cell voltage b) Total bank voltage c) Discharge current d) Ambient and cell temperature. Display shall be via local LCD display, with capability for viewing at a remote terminal.