Developing practical application skills, understanding the consistency of physical relationships and computational models, deepening theoretical knowledge. Laboratory investigation of the interactions between switching devices and networks during the operation of switching devices in the electricity network, and of the properties of the electric arc, comparing measurement and calculation results. Students will also learn in practice the diagnostic procedures of different electrical machines. The laboratory provides additional support for the theoretical subjects of the specialization.

Synopsis of lectures

There is no lecture in this subject.

Synopsis of practice and laboratory occasions

1.     Impact of consumers on the network in building energy systems

The aim of the measurement is to point out the effects of different consumers that distort the voltage and current curves, generating harmonics.

2.     Electro-adhesion test

Students will learn about the phenomenon of electro-adhesion in practice. The dependence of the gripping force on electrical parameters and material properties is investigated on an electro-adhesion gripper.

3.     Testing synchronous and asynchronous machines - testing switching transients

During the measurement, students will learn about low-power synchronous and asynchronous drives and motors, which are also used in building services systems. During the measurement, the characteristics of the motors are recorded and compared from a dynamic and application point of view.

4.     Investigation of innovative electromechanical converters

During the laboratory exercise, students will learn about basic piezoelectric phenomena. The electrical and electromechanical characteristics of a piezoelectric converter are investigated, and its characteristics are plotted.

5.     Switching on and off DC and AC circuits

Students will measure various distributed-parameter circuits for on-off and on-off transients. The purpose of the measurement is to make the student aware of the effects of switching overvoltage and the process of their generation.

6.     Investigation of electric arc characteristics and interruption

Students will be introduced to DC and AC arcs. During the measurements, they will take characteristics of the arc-interruption process and compare them with what they have learned in theory.

7.     Testing the operation of fuses and circuit breakers

Students will learn about the different protection systems of low voltage networks, such as circuit breakers and fuses. During the measurement, they will record their characteristics and examine the devices in operation.

8.     Insulating and dissipative materials. Design of an electrostatic workplace.

Students will learn the principles of designing electrostatically protected workplaces. They will verify the electrical properties of the materials used and the effectiveness of protective measures against electrostatic charging by measurements. 

9.     Testing thermoelectric converters  

The aim of this laboratory exercise is to familiarize students with thermoelectric converters. The electrical characteristics of a thermoelectric converter and the efficiency of the conversion are measured.

10.  Insulation testing methods based on partial discharges and reflectometry

Students will perform electrical measurements on a current transformer to detect partial discharges. In the second half of the measurement, reflectometric tests are carried out to determine the fault location in cable systems.

11.  Generation of high voltage

Students will learn and measure methods of generating different voltage levels, both DC and AC.

12.  Physics of induction heating, the forces caused by electric current

In this laboratory occasion, students will study the technique of induction heating, measure the efficiency of the conversion and determine the electrical parameters of the system.