The course starts out by repeating the electrical principles from the study of electromagnetism, relevant for this course. We will then cover the principles, construction, output, properties and fields of application of various electrical machines.

You will understand that all transformation of energy in machines follows the law of induction: Voltage is induced when an electrical conductor experiences a varying magnetic field. You will see that a dynamo, a generator, a motor, a transformer, a loudspeaker, a microphone, a cassette player and the read/write head in a computer disk are in theory similar machines. You will become familiar with some different machine types such as the induction machine also called asynchronous machine, the synchronous machine, the direct current generator and motor and transformers of various kinds. In the same way, you are to understand the difference between direct current, alternating current, single phase systems, three-phase systems and you will be able to conduct elementary calculations on machines in simple networks. You will also understand the ideas of efficiency, active and reactive power and some important roles that they play in small and large energy systems.

Textbook teaching through lectures in the autumn parallell. Calculation exercises will be given throughout the course. Laboratory exercises in the January block  with labs on the most important machines and principles being part of the course.

Canvas. Tutoring by teaching assistants. Meetings with teacher by appointment.

Theodore Wildi: Electrical Machines, Drives and Power Systems. Prentice hall, ISBN 0-13-093083-0 Currently: Sixth Edition. Curriculum is covered by chapters 1 - 18. Details will be given in Canvas. 7 laboratory assignments are also curriculum.

FYS235, FYS236

There will be two midterm tests of seven quarters each. The first one is on direct current, DC, and will be held about week 40. The other one is on alternating current, AC, and will be held about week 46. You must pass both tests to take part in the laboratory part of the course. If you cannot participate in the tests, you must present a medical certificate. There will be no continuation tests for the two midterm tests. You have to participate in a safety demonstration and must in writing accept the safety instructions for the laboratory part before you can participate in the laboratory part. Alle laboratory exercises shall be performed and must, including reports, be approved before you can take the final exam.

250 hours

Special requirements in Science

None

The external and internal examiner jointly prepare the exam questions and the correction manual. The external examiner reviews the internal examiner's examination results by correcting a random sample of candidate's exams as a calibration according to the Department's guidelines for examination markings.