ING3305 Marine Power Distribution and High Voltage Systems

Course code: 
Course name in Norwegian Bokmål: 
Maritim kraftdistribusjon og høyspenningssystemer
Program of study: 
Bachelor i militære studier
Level of study: 
Teaching semester: 
2023 Spring
Assessment semester: 
2023 Spring
Person in charge: 
Arild Sæbø
Course content

The course will provide the cadet with good knowledge and system understanding behind construction, calculations and operation of electrical installations and machines on naval vessels.

STCW code tables: A-III/6 and A-III/7

STCW function: Electrical, electronic and control systems at the operational level. Maintenance and repairs at the operational level

The course covers the following academic content: Choice of grid systems with lab. Calculation of grid constants. Calculation and dimensioning with respect to heating, voltage drop, loss of voltage and short circuits. Calculation of ground faults, contact voltages and ground-fault circuit interrupters with lab. Choice of protection and selectivity. Enclosure types and electrical equipment in ex-areas. Power management system. Magnetic circuits, materials and permeability. The transformer, calculation of parameters, voltage drop, short circuit calculations, autotransformer, parallel connection of transformers with lab. Synchronous motor, characteristics, relative values, stability, magnetising systems and lab. Induction motor. Motor and generator operation. Equivalent circuit diagram, electromagnetic braking, start and transient conditions and lab. Direct current machines. Body of rules and regulations. Practical laboratory work with high voltage installations. The structure, operation and functioning of marine high voltage systems. Components in high voltage installations. Protection, switches and cables. Electrostatics and insulation coordination in high voltage systems. Knowledge of building materials. Dielectric characteristics of solid, liquid and gaseous materials. Regulations, HSE and regulations for high voltage installations.

Learning outcome


After completing the course, the cadet is able to:

  • give examples of electrical energy production and energy distribution on Navy vessels.
  • describe the structure and functioning of electric machines.
  • explain the place of electrical machines in marine electrical installations.
  • make reference to applicable regulations and standards.
  • be aware of the structure, functioning and safety requirements for marine high voltage installations.
  • describe the construction of and strains on high voltage components.


After completing the course, the cadet is able to:

  • apply calculation methods in the field.
  • utilise measurement and troubleshooting methods, use relevant instruments and software to be able to work in a structured and goal-oriented manner.
  • apply theoretical and practical knowledge to electrical machines/installations and can participate in laboratory work and master relevant methods and tools.
  • join and terminate high voltage cables according to procedures.

General competences

After completing the course, the cadet is able to:

  • describe the structure, operation and have an understanding of the system behind an electrical installation on a naval vessel.
  • share his/her knowledge about electrical machines and installations in relation to theories, issues and solutions.
  • reflect on safety issues when working on electrical machines/installations and high voltage installations.
  • describe the structure and operation of a high voltage system.
  • share information on high-voltage installations related to theories, issues, solutions and safety.
Working and learning activities

Emphasis is placed on using examples from other subjects and from the service to illustrate topics in the course.

  • Curriculum review using questions/discussions
  • Calculation exercises and exercise review by student/teacher,
  • Student presentations, compulsory written assignments, tutorials and independent study.
  • Laboratory exercises and computer simulations  
  • Tests
Sensor system

Examination is carried out according to the Regulations for Admission, Studies and Examinations (in Norwegian, “Forskrift om opptak, studier og eksamen”) at the Norwegian Defence University College.

  • Dyrstad, T. (1988): Elektroteknisk ledningsberegning (2. utg.). Narvik: Universitetsforlaget .
  • Lasse Sivertsen (2019) Elektriske maskiner (1. utg.) . Bergen: Fagbokforlaget
  • Lasse Sivertsen (2020) Høyspenningssystemer (1. utg.) . Bergen: Fagbokforlaget


  • Forskrift om sikkerhet ved arbeid i og drift av elektriske anlegg (1996) FOR-2006-04-28-458 Oslo:Justis- og beredskapsdepartementet
  • Elektriske installasjoner om bord i skip og fartøyer, NEK 410-1:2008, Oslo: Norsk Elektroteknisk Komite
  • Elektriske installasjoner om bord i skip og fartøyer, NEK 410-2:2010, Oslo: Norsk Elektroteknisk Komite
  • Rules and Regulation for Surface Vessels of The Royal Norwefian Navy (2000) Part VIII, Bergen
Form of assessmentGroupingDurationType of durationGrading scaleProportionOral examinationCommentSupported materials
Skriftlig eksamenIndividual4HoursA-F50 %Not requiredThe exam must be passedCalculator and formula collection
MappevurderingIndividual SemestersA-F50 %Not requiredThe portfolio consists of laboratory exercises, practical exercise high voltage cable, assignments and tests. Details will be announced at the beginning of the term.
Form of assessment:Skriftlig eksamen
Type of duration:Hours
Grading scale:A-F
Proportion:50 %
Oral examination:Not required
Comment:The exam must be passed
Supported materials:Calculator and formula collection
Form of assessment:Mappevurdering
Type of duration:Semesters
Grading scale:A-F
Proportion:50 %
Oral examination:Not required
Comment:The portfolio consists of laboratory exercises, practical exercise high voltage cable, assignments and tests. Details will be announced at the beginning of the term.
Supported materials:
Approval signature: 
Fagråd Sjømilitær Teknologi, 18.04.2018