Electromagnetic compatibility analysing of electrical equipment

2016 ◽  
Author(s):  
Matej Kucera ◽  
Milan Sebok
Keyword(s):  
Electromagnetic Compatibility ◽  
Electrical Equipment

scholarly journals Modeling the spatial distribution of magnetic fields of low frequency multiple sources

2021 ◽  
Vol 5 (2) ◽  
pp. 34-37
Author(s):  
Larysa Levchenko
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Compatibility ◽  
Three Dimensional ◽  
Low Frequency ◽  
Electrical Equipment ◽  
Technical Equipment ◽  
Multiple Sources ◽  
Matlab Package ◽  
Many Sources ◽  
The Magnetic Field

The work is show that in conditions of dense the location of electrical equipment in the premises, buildings and on territories to ensure the regulatory levels of electromagnetic compatibility of personnel and the population, it is advisable to carry out preliminary modeling of the propagation of electromagnetic fields it is advisable. Considering the insignificant shielding of the magnetic field by the equipment cases, it is advisable to carry out modeling based on the magnetic component of the electromagnetic field. The mathematical ratio of the propagation of the magnetic field of individual sources, taking into account their dipole model, has been determined. The modeling was carried out for sources of the dipole and dipole-quadrupole types. Three-dimensional models of sources with the propagation of dipole, quadrupole and dipole-quadrupole harmonics of the field are provided, using the Matlab package. Application software has been developed in the C environment, using the SQL server database, and modeling of the propagation of the magnetic field of many sources in a certain plane has been carried out. This result is show that even for electrical equipment that operates to determine the reduced magnetic field isolines experimentally very difficult. At the design stages of equipment placement, modeling is the only tool for predicting the electromagnetic environment, which determines the electromagnetic compatibility of technical equipment and the electromagnetic safety of personnel and the public.

Development of Quality Inspection System for Insulation Monitoring Device of Metal-Oxide Surge Arrester

2013 ◽  
Vol 373-375 ◽  
pp. 848-851
Author(s):  
Yuan Yang
Keyword(s):  
Metal Oxide ◽  
Evaluation System ◽  
Electromagnetic Compatibility ◽  
Quality Evaluation ◽  
Performance Test ◽  
Mechanical Performance ◽  
Electrical Equipment ◽  
Inspection System ◽  
Monitoring Device ◽  
Insulation Monitoring

Metal-oxide surge arrester (MOA) is one of the important equipment in electrical utility company, its security and stability is critical to the safe operation of electrical equipment, and the insulation monitoring device is vital for getting the running status of metal-oxide surge arrester. Technical parameters requirements of this kind of device is discusses in this paper , and furthermore, relying on the condition monitoring technology laboratory for transmission and transformation equipment of the State Grid Corporation of China, a complete set of quality evaluation system is established, of which the following functions were realized, the total current and resistive current measurement error test, communication function test, environmental adaptability test, insulation performance test, electromagnetic compatibility performance test, mechanical performance test, enclosure protection performance test etc. With the system, a powerful technical support can be provided for the quality evaluation of the device, as well as the safe and reliable operation of the arrester.

scholarly journals Electromagnetic compatibility of PLC adapters for in-home/domestic networks

2018 ◽  
Vol 69 (1) ◽  
pp. 79-84 ◽  
Author(s):  
Lukas Potisk ◽  
Jozef Hallon ◽  
Milos Orgon ◽  
Radek Fujdiak
Keyword(s):  
Information Technology ◽  
Electromagnetic Field ◽  
Electromagnetic Radiation ◽  
Electromagnetic Compatibility ◽  
Electrical Engineering ◽  
Electrical Equipment ◽  
Electrical Networks ◽  
University Of Technology ◽  
Broadband Services ◽  
Made In

Abstract The use of programable logic controllers (PLC) technology in electrical networks 230 V causes electromagnetic radiation that interferes with other electrical equipment connected to the network [1–4]. Therefore, this article describes the issues of electromagnetic compatibility (EMC) of new PLC adapters used in IP broadband services in a multi-user environment. The measurements of disturbing electromagnetic field originated in PLC adapters were made in a certified laboratory EMC (laboratory of electromagnetic compatibility) in the Institute of Electrical Engineering at Faculty of Electrical Engineering and Information Technology of the Slovak University of Technology in Bratislava. The measured spectra of the radiated electromagnetic field will be compared with the results obtained when testing older PLC modems [5].

scholarly journals EMI Pre-Compliance Measurements Reveal Sources of Interference

2021 ◽  
Author(s):  
Bystrík Dolník
Keyword(s):  
Electromagnetic Compatibility ◽  
Electrical Equipment ◽  
Power Lines ◽  
Led Driver ◽  
Street Lighting ◽  
Conducted Emission ◽  
Two Factors ◽  
Current Content ◽  
Functional Blocks ◽  
Radiation Measurements

The chapter focuses on the electromagnetic compatibility of a prototype of electrical equipment such as street lighting with various LED controllers, LED information boards, and audio equipment. The requirements for the harmonic content of the input currents of the conducted emission power lines are used as a basis for the analysis of compliance with the EMC standards. The results obtained from the experiments indicated that some commercially produced voltage drivers are not compatible with the requirements for the harmonic current content of the input line. The problem is caused by two factors: a bad design by the manufacturer or the wrong LED driver design concerning the rated load. EMI radiation measurements indicate the need to precisely design all functional blocks placed on a PCB with suitable grounding and shielding techniques. This chapter is intended for engineers and researchers working in the development of electrical equipment as well as the general public interested in EMC issues.

ELECTROMAGNETIC COMPATIBILITY OF LOW-POWER AUTONOMOUS POWER SUPPLY EQUIPMENT

2020 ◽  
Author(s):  
V.N. Delyagin ◽  
◽  
V.I. Bocharov ◽  
Keyword(s):  
Low Power ◽  
Power Supply ◽  
Electromagnetic Compatibility ◽  
Autonomous Systems ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Electrical Network ◽  
Nonlinear Load ◽  
Harmonic Components

The article presents the results of research on the evaluation of electromagnetic compatibility of elements of the power supply system for Autonomous low-power consumers. The subject of the study is a quantitative assessment of the level of harmonic components of currents and voltages in systems: a permanent magnet generator-a DC-to-AC Converter-a consumer with a nonlinear load and interfering interaction of jointly working elements of this system. The level of harmonics of voltage and current in the local electrical network (farm), repeatedly (from 3 to 10 times) exceeds the regulatory requirements. The multiplicity of the increase in electrical energy losses (K-Factor) is from 5("pure" sine of the DC-AC Converter) to 20 (rectangular meander). When designing Autonomous systems, it is necessary to provide measures to reduce the loss of electrical energy, exit from standing electrical equipment and false triggering of electronic devices in the consumer of electric energy

Car GPS Antenna Electromagnetic Compatibility of the Simulation Study

2013 ◽  
Vol 457-458 ◽  
pp. 1144-1147
Author(s):  
Yao Dan Chi ◽  
Sheng Qian Zhang ◽  
Hai Long Gu ◽  
Yu Song Mu
Keyword(s):  
Automotive Industry ◽  
Electromagnetic Interference ◽  
Electromagnetic Compatibility ◽  
Rapid Development ◽  
Electrical Equipment ◽  
Field Pattern ◽  
Effect Analysis ◽  
Electromagnetic Immunity ◽  
Antenna Field ◽  
Gps Antenna

With the rapid development of the automotive industry,there will be automotive electrical presence of strong electromagnetic interference problems. he functionality of the car electronics electromagnetic interference problem has become increasingly prominent, car antenna by the degree of interference is particularly serious, people are urgently looking for a car antenna to solve electromagnetic immunity, which Anosft HFSS software GPS antenna modeling and simulation designing The GPS antenna field pattern and 3D simulation of electromagnetic fields effect analysis designed to provide a theoretical basis for the anti-anti-jamming GPS antenna electromagnetic and provides the premise for the future for other electrical equipment, electromagnetic compatibility research.

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