What Is Preventive Maintenance?

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What is Preventive Maintenance?

It’s natural for electrical equipment to degrade over time, but it doesn’t necessarily have to fail. Preventive Maintenance Services from Emerson will evaluate the condition of your equipment and determine the most cost-effective and manageable solution to ensure its overall performance, safety and reliability.

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Elements of a good preventive maintenance program should include the following:

  • Identification of equipment or systems that may malfunction
  • Typical equipment to be inspected including switchgear, circuit breakers, transformers, switches, etc.
  • Establishment of schedules and procedures for routine inspections
  • Periodic testing of plant equipment for structural soundness
  • Prompt repair or replacement of defective equipment found during inspection and testing
  • Inventory of spare parts for equipment that needs frequent repairs
  • Use of an organized record-keeping system to schedule tests and document inspections
  • Commitment to ensure that records are complete and detailed, and that they record test results and follow-up actions
  • Preventive maintenance inspection records should be kept with other visual inspection records

Let us help you design and implement a preventive maintenance strategy that will reduce your overall maintenance costs and the amount of time spent on unplanned maintenance. And more significantly, improve the overall reliability throughout your facility.


  • Reduce unplanned downtime
  • Lower overall maintenance costs
  • Improve system reliability
  • Prevent problems before they occur
  • Extend life of equipment
  • Ensure personnel safety


Emerson's preventive maintenance services include:

  • Maintenance planning & program development
  • Periodic inspection, cleaning & lubrication
  • Equipment calibration
  • Electrical testing for all electrical equipment/components
  • Insulation resistance testing
  • Doble power factor testing
  • High potential testing
  • Cable fault location
  • Ground fault testing
  • Ground resistance testing
  • Motor surge comparison testing
  • Time travel analysis
  • Insulating oil filtration
  • Transformer vacuum filling and commissioning
  • Fiber optic testing
  • Line disturbance analysis
  • Harmonic and power quality measurements
  • Voltage/load recording
  • Load bank testing
  • Magnetic field (EMF) testing and mitigation
  • Standby & Emergency System testing

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