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H868 - HV power distribution system - general course

The major objective of the course is to provide the participants with in-depth theory, and train them for safe operation, maintenance and testing of switchgears, breakers and relays.

Learning objectives

Upon completion of this course the participants will be able to:

  • Have a comprehensive background of the marine power plants.
  • Operate, maintain and work safely with circuit breakers (SF6, Vacuum), contactors and relays. 
  • Have detailed theoretical coverage alongside practical exercises for better understanding of switchgears.


General topics:

  • Introduction to marine power plants.
  • Safety procedures while working on the switchboard.
  • Power distribution systems (transformers, generator and motors).
  • Protection systems.

Power plant regulation:

  • Principle (voltage and frequency).
  • Droop control.
  • Power  management.


  • Components, accessories and interlocks.
  • Installation  activities.
  • Assembly procedure.
  • Maintenance and periodical checks.

Circuit Breaker (Vacuum/SF6):

  • Operation.
  • Safety  precautions.
  • Testing.

Contactor (VD4):

  • Functional  characteristics.
  • Application and accessories.

Protection relays:

  • Operation principal.
  • Setting  parameters.
  • Testing  relays.


  • Interpretation of alarms and faults.
  • Fault clearing procedure.
  • Repair of miniature faults and deviations.


  • Practical demonstrations on various switchboard models.
  • Hands-on experience on device operation.
  • Visit to production facility.

Course outline

General Information

Duration: 5 days
Venue: Genoa

Marine power plant basic for technical staff in ABB propulsion and marine high voltage safety or similar knowledge is advisable

Additional information: Minimum 6, maximum 8 participants
Modified on-site training on request
Student profile:

Marine engineers and electrotechnical personnel at the operational and management level

Download: Course description as a pdf

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