Electrical Systems Study for Ann Arbor VA Medical Center
Electrical Systems Study for Ann Arbor VA Medical Center
Client: VA Medical Center Ann Arbor
Location: Ann Arbor, Michigan
Key personnel J. Lopez, PE, Neil Sherer, Richard Simard, Donald Crawford, and Wesley Breckenridge performed an Arc Flash Study at the Ann Arbor VA Medical Center for the VA Medical Center at 2215 Fuller Rd., Ann Arbor, MI 48105. This study analyzed and evaluated the electrical system for the Ann Arbor Veterans Affairs (VA) Health Care facilities in Ann Arbor, Michigan. Existing drawings for the electrical system were reviewed; electrical system components were visited and observed by LEI personnel; VA maintenance personnel familiar with the electrical system were interviewed; and SKM software was used to perform short circuit and arc flash calculations. Much of the electrical system dates back to the 1960’s. The electrical system evaluated includes: 16 buildings, one 15 kV switchgear, 22 oil filled transformers, multiple engine generators, automatic transfer switches (ATS), switchgear, approximately 800 panelboards, motor control centers (MCC), and approximately 100 dry-type transformers.
Lopez and Simard surveyed active buildings for the study, 16 buildings and facilities in total. They gathered the existing electrical drawings, opened all panel boards, switchboards, switchgear, and motor control centers and gathered nameplate data for all electrical equipment, including individual circuit breakers in switchboards and distribution panel boards. Lopez and Simard investigated feeder sizes and estimated feeder lengths, gathered circuit breaker dial settings and developed single line diagrams. Analysis of single line diagrams for hazards was performed, a short circuit study was prepared and Arc Flash labels were prepared and installed on panel boards.
AREA: 1,171,000 SF