Substation Maintenance II

Source: AVO Training Institute, Inc.

Substation maintenance is a key component of any successful plant maintenance program.  Failures in key components can lead to unplanned outages, the need to replace equipment, and in some cases, the injury or death of personnel.  Having skilled substation maintenance technicians is essential to maintaining equipment reliability and potentially avoids these situations.

This portion of the substation certification focuses on the testing and maintenance of air and disconnect switches and different types of substation transformers. 

This course is intended for apprentices, technicians and engineers responsible for the maintenance and testing of industrial and utility substations.  This course requires working knowledge of basic electricity.  Students must wear long pants and safety toe shoes to complete the lab portion of this course. 

Course duration: 4.5 days
3.6 CEU

Learning Objectives:

  • Identify safe work procedures
  • Explain the configuration and function of common equipment found in a substation
  • Identify components of power and distribution type transformers, including common insulating and cooling mediums
  • Explain common transformer configurations
  • Perform and interpret results of winding resistance, dielectric absorption ratio, polarization index, and power/dissipation factor tests on transformers
  • Calculate temperature corrections
  • Identify ASTM requirements for testing and sampling gas and oil in transformers
  • Inspect, adjust and perform insulation resistance, connection resistance and over-potential tests on air and disconnect switches
  • Perform and interpret results of earth resistivity tests

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