•   Electrical Networks ELA22EI04-3001 28.10.2024-22.12.2024  3 credits  (ELA22D-V) +-
    Competence objectives of the study unit
    The student:
    - knows the principles of different electricity prices and tariffs and be able to make simple cost estimates
    - knows the structure of electricity distribution networks
    - understands and is able to calculate voltage drops, overloads, short circuits and various disturbances in the electricity grid
    - is able to design conductors taking into account the permissible load, voltage drop and short-circuit resistance
    - is able to calculate the need for phase compensation
    - knows the principle of different types of protection
    - knows and is able to describe different grounding systems
    - is able to explain and calculate earth slopes in isolated networks
    - knows the methods for inspections, checks and measurements
    Prerequisites
    Electrical safety and measurement technology
    Content of the study unit
    Electricity prices and different tariffs.
    Construction of electricity distribution networks.

    Voltage drop, overload, short circuit and various disturbances in the mains.
    Design of conductors.
    Phase compensation.
    The principle of different types of protection.
    Earthing systems
    Groundings in isolated grids.
    Inspections, checks and measurements.
    Assessment criteria
    Assessment criteria – satisfactory (1-2)
    Know the principles of electricity distribution.
    Knows about network construction and principle diagrams.
    Knows about the effect of the reactive power on the net.
    Can calculate electricity prices for ordinary consumers.
    Can calculate voltage drop in mains.
    Can measure ground resistance.
    Assessment criteria – good (3-4)
    Know the principles and methods of electricity distribution.
    Can design low voltage networks.
    Can calculate components for phase compensation.
    Can calculate electricity prices for ordinary and special consumers.
    Can calculate voltage drop and make judgments considering dimensions.
    Can account for different earthing and make measurements of earthing resistance.
    Understands the principles of earth fault protection in isolated networks.
    Assessment criteria – excellent (5)
    Know the principles and methods of electricity distribution.
    Can design low voltage networks.
    Can calculate components for phase compensation.
    Can calculate electricity prices for ordinary and special consumers.
    Can calculate voltage drop and make judgments considering dimensions.
    Can account for different earthing and make measurements of earthing resistance.
    Understands the principles of earth fault protection and can calculate earth fault currents and zero voltage at earth fault.
    Name of lecturer(s)

    Ronnie Sundsten

    Learning material

    Compendia of course coordinator.
    Compendiums, lectures and information available on the Internet.
    Degree projects available.
    Information from manufacturers and sellers of electrical equipment.

    Teaching language

    Swedish

    Timing

    28.10.2024 - 22.12.2024

    Enrollment date range

    15.06.2024 - 27.10.2024

    Group(s)
    • ELA22D-V
    Responsible unit

    Faculty of Technology and Seafaring

    Small group(s)
    • ELA22-K (Size: 40.
    Teachers and responsibilities

    Ronnie Sundsten, Johnny Haga

    Degree Programme(s)

    Degree Programme in Electrical Engineering and Automation

    Campus

    Vasa, Wolffskavägen 33

    RDI share

    0.00 credits

    Share of online studies

    0.00 credits

    Assessment scale

    H-5