Inquiry (采购产品): Custom UPS WMATA ( DC Metro ) would like keep existing Lucent Model KS-20472 List 4S 5 KVA battery bank( Output 120 Volt DC) and replace existing inverter ( 0.5 KVA,120 Volt, Single Phase) and charger ( 480 Volt, 3 Phase charger) with commercial grade UPS not WMATA spec compliant . Please find following WMATA requirements for Charger and Inverter: Charger shall provide inverter Input power ( 2 KVA ) simultaneously providing average load of 1.8-kW dc for switchgear loads as specified, with sufficient rating to simultaneously recharge the battery to 90-percent or more of fully charged condition in a 12-hour period from a discharged battery voltage of 150 Volt. Rectifier Float Voltage: 125 V DC to 135 V DC adjustable , Rectifier equalize Voltage : 135 VDC to 144 V DC adjustable Inverter : 2 KVA , 120 Volt , Single Phase , 3 Wire or ( 208 Volt, 3 Phase, 4 Wire ) Solid State , **** Hidden Message ***** Nayan Patel DC 20005 USA Company: Parsons E-mail: nayan.patel@parsons.com **** Hidden Message ***** nayan.patel@parsons.com
