Electrical/Basic course
HV/LV switchgear basic training

Aren’t you concerned about daily management and periodic inspection of switchgear?
　・To obtain basic knowledge essential for management/maintenance of electrical equipment of factories/buildings.
　・To see with your own eyes and understand the internal structure of HV/LV switchgear that is usually uncommon to be seen.
　・To understand structures of switchgear facilities and operating principles of circuit breaker (CB) and protection circuit, thus to become capable of correct operation.
　・Learn how to read electrical diagrams.
Understand structures through real facilities. Learn how to read electrical diagrams.


Learn how to use measuring devices through practical training. Acquire skills to operate/maintain switchgear.
　
Curriculum
Schedule Subjects Contents
1st day Switchgear facilities Use real facilities (sectional models) to study the structures, operating principles, functions, and diagram symbols of switchgear facilities.
Structures of HV/LV switchgear Study internal structures, bus compositions and inspection procedures of HV/LV switchgear.
Types and reading of electrical diagrams Learn how to read skeleton diagram and sequence diagram.
Safety of electrical work Study the safety instructions for handling electrical facilities.
2nd day Testing of HV switchgear operations Check switching/tripping operations of CB and study fundamental operations of switchgear facilities and configurations/operations of protection circuit.
Learn how to use typical measuring devices (tester, insulation resistance tester and voltage detector) through practical training on examination of bad insulations.
Maintenance inspection & Preventive maintenance Study the points for patrol/daily inspection based on failure case studies of switchgear facilities.


Training aids
Tools Specifications
Metal-clad switchgear 3.3 kV HV enclosed switchgear,
Mitsubishi Electric Corp.
HV CB Magnetic air CB, Mitsubishi Electric Corp.
Vacuum CB, Toshiba Corp.
Control center switchgear 440V LV switchgear, Mitsubishi Electric Corp.

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