Electrical Systems Study for G.V. “Sonny” Montgomery VA Medical Center
Electrical Systems Study for G.V. “Sonny” Montgomery VA Medical Center
Client: VA Medical Center Montgomery
Location: Jackson, Mississippi
Key personnel included John J. Lopez, PE, Neil Sherer, EIT, Donald Crawford, and Wesley Breckenridge performed an Arc Flash Study at the G.V. “Sonny” Montgomery VA Medical Center at 1500 E Woodrow Wilson Ave, Jackson, MS 39216. This study analyzed and evaluated the electrical system for the Jackson Veterans Affairs (VA) Health Care facilities in Jackson, MS. 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: 7 buildings, two 15 kV switchgear, 10 oil filled transformers, six diesel engine generators, multiple automatic transfer switches (ATS), switchgear, approximately 800 panelboards, motor control centers (MCC), and dry-type transformers.
Neil Sherer, accompanied by VA Electricians, surveyed active buildings for the study, 7 buildings and facilities in total. They gathered the existing electrical drawings, opened all panel boards, switchboards, low voltage switchgear, and motor control centers and gathered nameplate data for all electrical equipment, including individual circuit breakers in switchboards and distribution panel boards. Sherer 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 and a short circuit study was prepared. Arc Flash labels were prepared and delivered to VA maintenance personnel to install on electrical equipment.
AREA: 793,000 SF