bids are invited for 60 kva online ups with batteries & accessories - capacity (in kva / kw): 60 kva = 60 kw3 ph input / 3 ph outputtechnology and capability ( mandatory ):a) true online configuration with double conversion ups b) dsp based technology with reduction in electronic components.c) possibility of enhancing ups capacity / redundancy by operating ups in n+x parallel redundant configuration(prs).d) capability of independent or common battery bank operation of the ups when operated in prs.e) dual input design.f) ups should have igbt topology for both pfc (power factor correction) and inverter.g) should have dual aux power design.h) fan redundancy (if one fan fail ups should be able to handle at least 80% of the load.)input voltage range:220/380v,230/400v,240/415v (3f4w)range (full load) 173~276 / 300~477vacrange (derating to 70% load) 132~173 / 228~300vacnominal output voltage: 220/380v,230/400v,240/415v (3f4w)backup required :30 minutes on full loadbattery bank voltage : minimum 504 v dc or higherbattery bank vah : minimum vah - minimum 48000 vahbatteries type : sealed maintenance free (smf) - 12v cellsbattery makes : amara raja / exide / hblnumber of battery banks : maximum two banks in parallelnote: please see the uploaded specification in pdf format for more details. total quantity : 1