Study Guide

Objective

After passing the course the student is expected to:
Know and be able to calculate generator protection.
Know when and how to use symmetrical components.
Know and be able to specify the principles for regulating voltage and reactive power.
Know and be able to specify the principles for frequency control and active power.
Know the principles of and be able to calculate static and dynamic stability.

Content

Static stability.
Dynamic stability.
Symmetrical components.
Frequency and active power.
Voltage and reactive power.
Generator protection.

Location and time

Weeks 36 to 50 according to the schedule in Peppi.

Materials

Powerpoint presentations
Sähkölaitostekniikan perusteet by Elovaara & Laiho
Electric Power Systems by Weedy & Cory
Power Supply Challenges by Klimstra.

Teaching methods

Lectures
Practical calculation
Self studies
Assessed labs

Exam schedules

Exam around week 41.

Completion alternatives

Written exam
One approved laboration report.

Student workload

A total of 81 hours, of which contact lessons are six weeks with two lessons of two hours per week. In addition, one laboratory session of 4-5 hours.

Content scheduling

Theory during weeks 36 - 41. Laborations during weeks 43 - 50.

Evaluation scale

H-5

Assessment criteria, satisfactory (1)

Knows about the various protection functions of the generator protection, as well as their setting values.
Knows the use of symmetrical components and can calculate simpler examples.
Know the basic principles of voltage regulation and regulation of reactive power.
Know the basic principles for controlling active power and frequency.
Know the principles of how static stability is achieved.
Know the principles of how dynamic stability is achieved.

Assessment criteria, good (3)

Knows the various protection functions of the generator protection carefully and be able to calculate their setting values.
Can describe the use of symmetrical components and can calculate more difficult examples.
Can specify the basic principles of voltage control and reactive power control.
Can describe how regulation of active power and frequency is realized.
Can calculate how static stability is achieved.
Can describe how dynamic stability is achieved.

Assessment criteria, excellent (5)

Able to choose generator protection, and calculate their set values ​​for a demanding application.
Can describe in detail the use of symmetrical components and calculate complex applications.
Can specify in detail how voltage control and control of reactive power are realized.
Can describe in detail how control of active power and frequency is realized.
Can calculate how static stability is achieved, and describe the effect of various factors on stability.
Can calculate how dynamic stability is achieved, and describe the effect of various factors on stability.

Assessment methods and criteria

The written exam consists of five or six questions of 6 or 9 points, with a total of 42 points. About half theoretical questions, other half calculations.
In the calculation exercises, an answer gives full points if the calculations are complete with the right values ​​and the correct answer. Careless errors give deductions.
The lab is assessed with a score of 1-10, ie a maximum of 10 points. The report is primarily assessed, but the own activity during the laboratory session is also taken into account.

Assessment criteria, fail (0)

Less than 12 points from the exam and/or less than 16 points in total.

Assessment criteria, satisfactory (1-2)

Grade 1: 16 - 21,5 points
Grade 2: 22 - 27,5 points

Assessment criteria, good (3-4)

Grade 3: 28 - 35,5 points
Grade 4: 36 - 42,5 points

Assessment criteria, excellent (5)

43 points and more

Qualifications

The course Electrical Power Utilization.