Problems during the Design and Testing of Instrument, Special and Power Transformers
A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F1: Electrical Power System".
Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 14840
Special Issue Editors
Interests: instruments; special and power transformers; accuracy of operation; transient analysis of current and voltage; designing and laboratory tests; electromagnetic field theory; insulation of electrical HV and MV devices
Interests: power transformers; losses and heating in power transformer; assessing the dielectric stress on insulation; overvoltages in dielectric testing; short-circuit transient currents; harmonics measurement
Special Issue Information
Dear Colleagues,
It is hard to imagine modern society without the use of electrical devices. Power transformers as well as current and voltage transformers are essential elements of both the power system and renewable energy conversion systems. The operating principle of all types of transformers is the same, but their tasks are different. Power transformers transfer power, and therefore power losses in the core that cause heating as well as forces that cause noise and vibration of the core are important. The purpose of instrument transformers is to accurately transform the currents or voltages during the operation of the system, which are then used to measure the transmitted power and protect the power grid, making them very precise devices. Power transformers and instrument transformers are located at all transformer stations, specialized high-voltage and high-power laboratories, as well as research and teaching laboratories. Special transformers work in other conditions, e.g., at high frequencies, and are necessary in some specialized research laboratories. Therefore, the design requirements for different transformers are very different depending on their type, function and operating voltage. Design requirements concern not only the operation, but also the strength of the insulation system at high and medium voltages, and sometimes mechanical strength.
This Special Issue aims to present and disseminate the latest developments in the theory, design, modelling, and laboratory testing of all types of transformers.
Topics of interest for publication include, but are not limited to:
- All kinds of instrument transformers: their measurement and protection; current; voltage; combined high, medium and low voltage; inductive and capacitive and other structures
- Various types, constructions and applications of special transformers
- Different types, constructions and applications of power transformers, 1- and 3-phase, for different voltages
- Designing and assessing the dielectric stress on insulation in high- and medium-voltage transformers
- Thermal and vibroacoustic analyses of transformers
- Optimal design methodologies
- Advanced modeling methods
- Innovative methods of technical research
- Diagnostics of insulation of medium- and high-voltage transformers and testing of partial discharges
Prof. Dr. Elzbieta Lesniewska
Prof. Dr. Xose M. Lopez-Fernandez
Prof. Dr. Pawel Witczak
Guest Editors
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Keywords
- instrument transformer
- special transformer
- power transformer
- designing
- FEM simulation
- laboratory testing
- insulation diagnostics
- thermal analyses
- vibroacoustic analyses
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