15kV Switch and Transformer Preventative Maintenance
Closed October 5, 2026closed · Maryland
This bid is for preventative maintenance of electrical switches, transformers, and 480V equipment at the University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250.
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What the job is
Equipment: Three-year schedule covering 34 switches rated 15kV, 13 transformers rated 13.2kV/480V (225–3,000kVA; liquid-filled and dry-type), and 480V panels with 10 main breakers and 92 distribution breakers.
Transformers: Visual/mechanical inspections, turns ratio, insulation resistance and power factor testing, plus heater/fan checks where applicable. Oil sampling excluded.
Switches and fuses: Inspect, exercise, clean and lubricate; perform insulation resistance, contact resistance, AC overpotential, and fuse/holder resistance tests.
480V equipment: Inspect panels, connections and insulators; test insulation and connection/contact resistance, charging mechanisms, and shunt-trip/close-coil pickup voltage. Secondary current testing only.
Standards and staffing: Follow manufacturer specifications, NETA and NFPA 70B/70E. Maryland Master Electrical License and five years’ relevant experience required; certified testing technicians with a NETA Level 2 or higher crew leader.
Outages and reports: Coordinate shutdowns with campus staff; supply lockout devices and protective grounds. Provide written test results and repair recommendations; quote replacement parts separately.
Pricing: Provide fully loaded weekday and evening/weekend/holiday hourly rates and identify other charges for a three-year term with two optional one-year renewals.
XL Eagle