•   Transformers ELA22EA02-3002 06.01.2025-16.03.2025  3 credits  (ELA23D-V) +-
    Competence objectives of the study unit
    The student:
    - knows and understands the use and need of transformers of various kinds
    - is able to understand and explain the basic functions of different types of transformers
    - is able to calculate losses, voltage drops and efficiency of transformers
    - knows and understands the functions of different peripherals.
    Prerequisites
    Electric and magnetic fields.
    Content of the study unit
    Magnetic circuits.
    Application of magnetic circuits for different types of transformers.
    Basic functions and connections for transformers.
    Calculation of losses, voltage drops and efficiency of transformers.
    Single-phase transformers
    Three-phase transformers
    Special transformers
    Instrument transformers
    Assessment criteria
    Assessment criteria – satisfactory (1-2)
    Knows the significance of transformers historically and in the present.
    Can describe the structure and properties of the transformer in an electrical grid.
    Can describe three-phase transformer connections.
    Can name and explain the principle for different special transformers.
    Can calculate voltage drop in single phase and three phase transformers
    Assessment criteria – good (3-4)
    Can describe the function of transformers with physical grounding.
    Can calculate voltage drops and losses under load.
    Can calculate voltage drop and efficiency at different loads.
    Can describe the operating principles for eg. spark-coupled transformers.
    Assessment criteria – excellent (5)
    Master the relationships between electrical quantities in the operation of transformers.
    Master different ways of describing and calculating transformer equivalent schemes.
    Can calculate and describe transformer coupling index and turnover for different couplings.
    Can describe and calculate important limiting data for current transformers
    Name of lecturer(s)

    Ronnie Sundsten

    Learning material

    Compendiums of course responsible and info from transformer manufacturers.

    Teaching language

    Swedish

    Timing

    06.01.2025 - 16.03.2025

    Enrollment date range

    01.12.2024 - 05.01.2025

    Group(s)
    • ELA23D-V
    Responsible unit

    Faculty of Technology and Seafaring

    Small group(s)
    • ELA23-K (Size: 40.
    Teachers and responsibilities

    Henrik Järveläinen

    Degree Programme(s)

    Degree Programme in Energy Technology, 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