RFI slc-d-arsr-e022.pdf

This is an electrical one-line diagram for the ARSR (Air Route Surveillance Radar) facility located at Salt Lake City, Francis Peak, Utah. The diagram illustrates the complete electrical power distribution system for the radar installation, including the commercial power supply infrastructure, backup power systems, and all associated electrical components.

The system includes a 120/208V, three-phase commercial power feed from a local utility, with primary distribution through a main service panel and essential distribution module (EPDM) rated at 120/208V, 3-phase, 48 MLD (Main Load Demand). The facility incorporates redundancy through an ATS/bypass book configuration, a Kohler 200RZJ E/G generator set rated at 120/208V for emergency power backup, and multiple sub-panels including a motor starter panel, water heater panel, and various load distribution panels. Power conditioning includes a UPS (Uninterruptible Power Supply) system with a 208V, 3PH rating and associated battery bank for critical loads. The diagram details specific load circuits, disconnect switches, overcurrent protection devices, and grounding arrangements. Additional equipment specifications are noted, including a KATO motor-alternator set with internal breakers, ceiling-mounted pull boxes, and heat exchanger power feeds. The drawing was prepared by Hung D. Blau (Project Engineer) and Steve Greenebergh (Manager Engineering-Seattle) and supersedes NMD-DTI-170962, Rev B, dated 01/23/1998.