Power Equipment & Power Management - Switchgear, Circuit Breakers, and Contacters: Medium Voltage Circuit Breaker and Contacters
There are currently no Courses Scheduled for Medium Voltage Circuit Breaker and Contacters.
Course Description

Medium Voltage Circuit Breaker and Contacters

Maintenance Training

This course is designed for technicians and engineers who are responsible for maintenance of medium voltage air / vacuum circuit breakers and contactors (Magne-Blast, Power/VAC and Limitamp equipment). Two-thirds of the class is dedicated to hands-on laboratory work.

Course Content
Agenda topics include:

Magne-Blast circuit breakers

  • Drawings
  • Switchgear protective relays
  • Ml-13 operating mechanism
  • Adjustments and maintenance

Power/VAC circuit breakers

  • Drawings
  • Ml-17 operating mechanism
  • Ml-18 operating mechanism
  • Adjustments and maintenance

Limitamp motor controllers

  • Drawings
  • Limitamp air-break contactors
  • Limitamp vacuum contactors
  • Adjustments and maintenance 



As instruction is given in English, a reasonable ability to read and understand English.

Course Requirements and Attire 

The appropriate dress for this course is casual. Please note that the GE Energy Learning Center is a place of business - no shorts, sandals, tank tops or shirts with inappropriate verbage or signs.

Effective March 1, 2011, the GE Energy Learning Center will become a tobacco-free campus and smoking will be prohibited in all areas of the property, including outdoor space owned by GE. This means that all employees, as well as customers, contractors and visitors will be prohibited from using tobacco products anywhere on our campuses, including in motor vehicles. If an individual wishes to use tobacco products he/she needs to leave the campus in order to smoke or to use smokeless tobacco. Leaving campus is only acceptable during regularly scheduled lunch breaks. Leaving the property during shorter class breaks will not provide adequate time to return to class. Persons who do not comply will be asked to leave the campus.


The duration of this course is 5 days

Note: Half-day classes will end at 12:00 noon. Morning and afternoon refreshments will be provided each day.


There are no additional recommendations for this course.

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