Introduction to Distribution SystemsLaajuus (6 ECTS)

Objective

After completing this course the student knows in general terms the structure of the distribution network from the generator exis to the distribution centers of individual buildings. The student is familiar with the basic design principles concerning the voltage drops and power losses in the network.

As a rule, the student is able to participate in measuring the voltages, currents and efficiencies from the point of view of the requirements on electric power systems. The student knows energy and reactive power as well as qualitative criteria and is able to simulate electric power system faults in practical measurements.

Content

1. The distribution structure at 400 V ... 400 kV
2. The main principles of design
3. Efficiency and reliability
4. Load-flow calculation methods
5. Basic principles of fault current calculations
6. The laboratory works (9 pcs)

Assessment criteria, satisfactory (1)

1. Students know the structure of a typical distribution network at 400 V ... 400 kV voltage levels
2. Students know the main principles of network design
3. Students know the technical and economic principles of design and the importance of reliability
4. Students are able to calculate the load flow calculation's essential criteria (voltage, power loss)
5. Students knows the basic principles of fault current calculation
6. The laboratory work, students are able to participate in the activities of a measurement group.

Assessment criteria, good (3)

1. Students are familiar with the electrotechnical structures of the electrical distribution system used in Finland on the 400 V ... 400 kV voltage levels
2. Students are able to design the basic components of a distribution network
3. Students know the technical and economic principles of the design process and the importance of reliability
4. Students are able to calculate the most relevant criteria (voltage drop, power loss) of the load flow calculations and their costs
5. Students are able to calculate the symmetrical fault current in a simple system
6. The laboratory work, students are able to manage the activities of a measurement group.

Assessment criteria, excellent (5)

1.-6. The laboratory work, students are able to develop and improve the activities of a measurement group.