Supply, testing, installation and commissioning of 5 ky A UPS system as per the following specification: 1 Capacity 5 ky A UPS system with APFC system 2 Input supply Suitable for400±15% Y, 3 phase, 50 ±10% Hz 3 Inlets Through MCB 4 Input Power factor & harmonic Input currents shall be sinusoidal. Correction For all types of loads (linear & non linear) above 25% of the rating: (1) Power factor ~ 0.95, using active power factor correction system. ". (2) THDI less than 10 %, using active harmonic conditioners. 5 Rated Output Power 5 kv~ at a power factor 0.8 lag or better 6 Out put supply 3 phase 4 wire, 230 Y phase-neutral for all phases, 3 separate outlets for distribution +E tem1inal Voltage Regulation: Range: ± 1% steady state for a static 100%) balanced lunbalanced load, 5% for a 0 to 100% load step. Mean deviation for 0-100% step load response: less than ±3%. - Recovery time to ± 1%: max 20 ms 7 Output Waveform and Pure Sinusoidal wave. frequency Voltage Distortion (THO): Less than 2% for linear load, Less than 3 % for non-liner load. 50 ± 0.1 % Hz free running and ± 2 % provision for synchronized with mains 8 Outlets (output panel) through MCB and HRC Fuse, with separate earthing terminal 9 Max. phase difference ilp - olp < 10 degrees 10 Crest factor rating 3: 1 or Better 11 Overall efficiency (normal ~ 95% at rated load and not below 90% at 25% load. mode) 12 Bypass Automatic bypass: Static bypass to provide an uninterruptible transfer of the load to the utility in case of failure of any of the system components or malfunctioning and shall retum the load automatically to the UPS when the malfunction or overload is cleared. The switching time from inverter to reserve (bypass) and vice-versa shall be of No-Break The automatic by-pass switch shall be able to activate manually by a switch/push button to test bypass operation with a disabling feature The maintenance by-pass shall be based on a manually
operated switch, which allows the electrical isolation of the UPS from the load while still supplying the load directly from the mains. Transfer Time (in Sync Mode with suitable syn. controller) to and from any internal bypass shall be no-break (less than 5 ms). Switchover Conversion Overload Minimum capability DC side voltage to inverter Technology Short Circuit < 320V and > 450V Sinusoidal PWM with IGBT UPS: J 20 % for 10 min, 150% for 1 min. Battery operation: 150% for 30 sec,200% for 5 Cycles Bypass operation: 120% Continuous 5*1 for invertor, 20*1 for bypass ~ 240 V; Higher voltage support with intelligent battery man::lgement system is always preferred Sealed Maintenance free type approved/accepted make and BIS certified. Backup Capacity: 10 minutes at full load; Ampere-hour rating of the battery and no. of batteries selected shall be suitable for the specified back up time. Recharge time: in the order of 6 hours or less for 90% capacity; The battery charger output voltage shall be automatically adjusted in proportion to the ambient temperature of the battery as per the battery supplier's recommendation to avoid over-charging;. The end of discharge voltage of the batteries must be load dependent in order to prevent deep discharging of the batteries whilst utilizing maximum available capacity; The rectifier/charger output cun"ent and voltage shall be limited to the battery supplier's recommendation; Constant current charging under floating voltage then constant voltage, support with intelligent battery management system. After recharging batteries to full capacity, the charger will enter the rest mode to increase the battery lifetime. Hence, continuous float charging of the battery shall not be allowed. Mains -OverfUnder Voltage, Phase Failure, DC OverfUnder Voltage, Inverter OverfUnder Voltage, Inverter Overload, Overheat, Overload trip with manual reset; Low battery trip with audible warning 3 minutes advance; Battery Over charge, Battery Over current, reverse polarity fault conditions, Battery line fuse; Emergency power off; MCB -Built-in Soft Start ;
EMI and surge protection; For safety purposes the UPS shall be equipped with a backfeed protection contactor in the bypass circuit. This backfeed protection shall be installed standard inside the UPS cabinet. 20 Indication/ LCD Display front panel display consisting of a graphical LCD display with back light: Mains Voltage-frequency-current input; Output Voltage-frequency-current ; Battcry and DC bus Voltage; Run time on mains failure; Total run time; (or Digital meters for above items) Mains On, Inverter ON, Battery On Charge, Mains Over/Under Voltage, Phase Fail, Low Battery, DC Over/Under Voltage, Inverter Over/Under Voltage, Invelier Overload, Overheat, Load On Inverter, Bypass.\; On, Manual Bypass On;. Name plate with minimum data:-name of Manufacturer, Model no, batch-serial no, Date of manufacturing, Rating shall be provided on outside under clear visible place. 21 Audible alann with Mains failure, On battery, On bypass, Overload, Low indication/display & reset Battery, replacement of battery 22 Mounting On Castor wheels with standard leveling feet 23 Data Storage Sufficient to store history for minimum one week or 200 events;. 24 Cooling Forced Air 25 Ambient UPS & battery -Suitable for continuous optimum operation (& storage) without any air conditioning under an ambient temperature 0-45 C & 5 to 95%RH 26 Audible noise < 50 dba at 1 meter from all sides in all modes. 27 Protection degree IP 20 or better (IEC 60529) 28 Standards Construction & Modular construction -IEC 62040-1, IEC 60950, EN safety 50091-1 29 Standards EMC IEC 62040-2,EN 50091-2 30 Surge capacity IEC 1000-4-5 31 Harmonics standard IEC 61000-3-2/4 32 Performance and topology IEC 62040-3, EN 50091-3 33 Electrostatic Discharge withstand a minimum 8 kv without damage and shall not affect the critical load. 34 Software interface LCD screen, PC interface with software SNMP as an option with all necessary accesso ri es/ interfaci ng connectors/adapters, for Monitoring, controlling and shutdown of the UPS system from remote & local, compatible with Windows 2k,NT,Linex platform 35 WarTantee Minimum 3 years for the complete installation: including all the pmis and system of UPS and Battery 36 Scope of supply Supply, wiring/cabling of UPS & battery, battery stand,
Important: Offer shall be considered only if it contains: Special Conditions at the time of supply software interfacing, maintenance manuals, testing & commissioning at specified location as per the relevant Indian standard/ nonns (I) Technical specification (for each item given here in serial number vise from 1-38) with supporting printed manual or catalogue for technical items, for the model offered and type test report of the model offered (attaching a copy of the specification indicating "comply" IS not acceptable). Technical specifications /Deviations if any shall be highlighted for each item quoted in serial number vise. (2) Specify clearly the model, type, make, indicating output power and cu'rrent (3) Full technical data of the battery offered and shall provide calculation to show the number of cells required and their capabilities which shall match the load requirement and 'the charging characteristics of the UPS requirement being offered.(battery back up calculation with battery discharge/ups efficiency at different loads shall be submitted) (4),List of institutions In India where the same model/makeirating is commissioned (5) Nearest service center shall be indicated. Maximum response time shall be 24 hours for the service call. The tenderer shall provide evidence and undertake that round the clock on-call service is availableto attend to systemfailure. (6) Certificate of approved dealership from the original manufacturer, if required (7) AMC charges (after 3 year warranty period) without any conditions for 4 th and 5 th year shall be separately specified in the offer The item will be accepted only after the organisation is satisfied that it is strictly in compliance with the above technical specifications. The finn shall produce acceptance test certificate along with the supply of equipment, for all the parameters for the UPS offered (same serial number and model) from CPRI, Bangalore or from Dept. of Electrical Engg.,NIT Calicut. Corresponding test charges shall be borne by the finn. Rejection of the UPS for not satisfying the technical specifications or delay in supply /installation as per the above conditions without valid and sufficient reasons satisfactory to us, after placing purchase order will lead to blacklisting the finn and/or further penalty as decided