Successful bidder will provide 1 20KVA inverter with a bypass transformer and 2 battery chargers. The purpose of the inverter and battery chargers is to supply power from a bank of batteries to 120V AC UPS Panel 1APIPPL-1 and 125V DC Panel 1 1APH-PPL-1 for uninterrupted power (See drawing 18078-1UUU-E1701 below). The battery chargers are redundant and share the load between the 2 of them. A secondary 480V AC (located in the water treatment building, see drawings E1701, E1001, E1004, M1001, and B4802) supplies the backup transformer (480/120) and will automatically transfer from the inverter in the case of battery power loss. See below for existing equipment nameplate and drawings. Inverter Data: 1. Input a. 130 VDC b. 238 Amps DC 2. Output a. 120 VAC b. 167 Amps AC c. 60 Hz d. 20 Kw e. 20 KVA f. Single phase 3. Bypass Transformer a. 480 VAC Primary b. 120 VAC Secondary Battery Charger Data: 1. Input a. 480 VAC b. 64 Amp Nominal c. 77.1 Amp Max d. 3 Phase e. 60 Hz 2. Output a. 120 VDC b. 300 Amps
