Preventative Maintenance and Field Services

ABB Medium Voltage factory-trained technicians offer comprehensive field maintenance and repair services for planned and emergency work, 24 hours a day, 365 days a year. Service personnel have direct contact with the factory for authentic parts, original equipment drawings, and technical support. ABB also offers maintenance and repair training from product orientation for new equipment to advanced repairs and life extension programs.

Emergency repairs
Factory-trained technicians are available 24 hours a day, 365 days a year to support emergency repairs. Technicians also have the support of the mv service factories to provide necessary parts, drawings, and engineering guidance.

Low & Medium Voltage Switchgear & Indoor Circuit Breakers

Medium Voltage Outdoor Breakers & Reclosers

Relays & panels

Relay system maintenance

MV Service offers maintenance on relays and relay systems used for the protection of generation, transmission, transformer, and distribution systems. The ABB field service technicians are factory trained to maintain all manufacturers’ relays and all types of relays including electromechanical, solid state, and microprocessor. Typical maintenance packages include an initial inspection of the relays, “as found” testing, cleaning, recalibration, and “as left” testing. All of the findings and test results are documented and reported.


Our service team will maintain all manufacturers’ relays and provide complete test reports and schedules.

  • Electromechanical
    • Inspection
    • As Found test results
    • Calibration
    • As Left test results
  • Solid State
    • Inspection
    • Check / record settings
    • Test results
  • Microprocessor
    • Inspection
    • Check / record settings
    • Metering accuracy
    • Computerized test results
  • Relay Assessment
    • Relay reliability
    • Maintenance
    • Repair & retrofit

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