Gem Bids For 12 Ups System 3kva 1phase - Ups,system,3kva,1phase With Specification As Follows:true On-line Ups,single Phase, Capacity:3kva,input:230v+/-15%,50hz+/-6%,output 230v +/-2%,50hz+/ -0.5%,sinewave 15minutes Battery Back Up,in-built Standard Maintenance Free Battery,each Battery Shall Be Of 12v,preffered Make:exide/ Sabnife/uplus/yuasa,total Harmonic Distortion <2% Power Factor:0.6 To Unity Crest Factor 3:1maximum Efficiency:>85%,dc Ripples:<1% Overload Capacity:150% For 10 Second,display Input/output Voltage,frequency, Current,battery Charging&discharging Current,diagnostic And Status Di Splay,protection:mains Over/under Voltage Dc Over/under Voltage, Inverter Overload,over Heat,battery Charging Current Limit, Pre-tripping Alarm For Battery Low And Tripping For Battery Low And Output Short Circuit Protection Ambient Temperature:45 Degree C, Humidity 95% Load Stransfer Time:bumpless Transfer,the Ups Shall Have Following Additional Features:(1)inbuilt Surge Protection,(2)output Having Dry Type Isolation Transformer, (3)automatic Bypass Static During Inverter Failure