WBPWD/SE/SWEC/NIQ28/2020-21/ Retender

Amount

Supply,Installation ,testing &commissioning of 20kVA UPS with following major specifications: [Make : APC / EMERSON / VERTIV / NUMERIC / SWITCHING AVO/ ABB/Powerone]

TECHNOLOGY :Should be digitally controlled, IGBT based double conversion On-line VFI according to IEC62040-3 specification, Inverter and Rectifier both should be IGBT based. Isolation Transformer (Delta to Star connected) should be provided on the Inverter output ,outside of the UPS for modular UPS system. Output Neutral with Ground voltage should be <1 V Nominal power : 20KVA Active power : 18KW In/Out phase Configuration : Three/Three, Three/Single Neutral : Neutral passing through Ouput wave form on mains run : Pure Sinusoidal Bypass type : Static and electro-mechanical Transfer time : Zero

INPUT : Phase : 3 Phase 4 Wires and Ground Rated Voltage : 380/400/415Vac Working Voltage Range: 320~478Vac Frequency Range : 45-55Hz at 50Hz/54-66Hz at 60Hz (auto sensing) Power Factor : ≥0.99 Current THDi : ≤3%(100% linear load) Bypass Voltage Range : Max.voltage: 220Vac: +25%(optional +10%,+15%,+20% ) 230Vac: +20%(optional +10%,+15%) 240Vac: +15%(optional +10% ) Min. voltage: -45% (optional -20%, -30%) Frequency protection range: ±10%

OUTPUT : Phase : 3 Phase 4 Wires and Ground Rated Voltage : 380/400/415Vac Power Factor : 0.9 Voltage Regulation: ±1% Frequency Utility Mode: ±1%, ±2%, ±4%, ±5%, ±10% of the rated frequency(optional) Battery Mode : (50/60±0.2%)Hz Crest Factor : 3:1 THD : ≤2% with linear load ≤5% with non linear load Overload : 110% for 1 Hr., 125% for 10 mins., 150% for 1 min. Minimum efficiency : Should be > 90% at full load

BATTERY : Type & Voltage : SMF & 12V Minimum VAH required : 31200 VAH or, to satisfy the condition of 60 min run at full load whichever is higher. Minimum Backup time : 60 min at full load condition Make : Exide Power Safe / Amaron Quanta Charging cycle : Automatic float cum boost charging capability with settable float & boost charging voltages & current levels and boots charger timer.

GENERAL FEATURES Noise level@1m : 46 dBA Working temperature range : from 0 deg.C to 40 deg.C Storage temperature range : from-20 deg.C to + 50 deg.C (Excluded batteries) Relative Humidity range : 20-95% with out condensation Protection Degree : IP 21 CONFIGURATION AND MANAGEMENT : Technology Rectifier/Booster : IGBT Communication interface : 2 serial port RS 232, SNMP Enabled. Slots for communication interface for SNMP Input/Output connection : 3P+N+PE Connectors on omega bar

Normal Protection : Input, output, rectifier input, battery fuse, bypass fuse, short circuit etc. Thermal on system, rectifier, bypass and inverter. Protection against prolonged battery discharge

METERING,ALARM : Audio alarm : Mains fail, Battery low pre-alarm, inverter trip etc. Metering : (i) input & output (a) Current:-RMS Value,peak value crest factor (b) Voltage:- ph-N RMS Value,ph-ph RMS value,bypass line (c) voltage (for input) Power:- Nominal power (VA), Active power(W),power factor, frequency (ii) Battery : voltage, current , capacity, history data, residual capacity, charging status (iii)Bypass : Enabling, Forced, DIP Speed, ECo Mode (iv) Miscellaneous : internal Temperature, DC bus voltage INDICATION/DISPLAY : Mains:- on/Fail/High/Low/Single Phasing, DC:- on/high,battery:-low pre-alarm/low trip,inverter:-on/trip,by-pass,intervention, overheats overloads,battery intervention,total discharge etc.

N.B : 1. The OEM/Manufacturer should comply standard certification, it must be submitted during the uploading of tender documents or latest by prior to issuance of LOA failing which the bid may be cancelled and appropriate action leading to debbarment may be taken in due course. 2.The work shall be completed in all respect and shall be free from all kinds of defects/deficiencies/damages in equipment, materials, components and other auxiliaries and workmanship from any cause whatsoever for a period of Three years warrenty or, total replacement in case of major defects or fault for both the battery and UPS from the date of commisioning of the UPS.

Hipotronics Engineers

Rajalakshmi Enterprise