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Razvoj elektronike trifaznega merilnika električne energije
MALOVRH, DAVID (Author), Jankovec, Marko (Mentor) More about this mentor... This link opens in a new window

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Abstract
Pri vseh vrstah merilnikov je prvotnega pomena njihova negotovost meritve, stabilnost in odpornost ter zmoţnost pravilnega zaznavanja morebitnih motenj merjenca. Trifazni merilec električne energije z moţnostjo merjenja dodatnega poljubnega oziroma ničelnega toka smo razvili v podjetju Strip's d. o. o. Osnovno mesto uporabe merilca za posredno merjenje porabe energije je v razdelilni elektro omari. Vgradimo ga za varovalkami ali tokovnimi odklopniki na strani trifaznega porabnika električne energije, ali pa merimo posamezna enofazna bremena. Izdelek je del večjega sistema, ki skrbi za shranjevanje izmerjenih lastnosti električnega omreţja in prikazovanje statističnih podatkov, ki jih pridobi iz merilcev dodanih v sistem. Diplomsko delo opisuje razvoj trifaznega merilca električne energije in vključuje opis zasnove in zgradbe izdelka ter računskih operacij, ki so potrebne za merjenje veličin. Predstavljen je osnovni princip delovanja in prenašanje podatkov do uporabnika. Glede na podane funkcionalne in tehnične zahteve, so predstavljena tudi testiranja izdelka in pripadajoči rezultati. Opisani so tudi večji problemi, ki so se pojavili v obdobju razvoja.

Language:Slovenian
Keywords:trifazni merilec električne energije, posredno merjenje porabe energije, lastnosti električnega omrežja
Work type:Bachelor thesis/paper (mb11)
Organization:FE - Faculty of Electrical Engineering
Year:2017
Views:781
Downloads:423
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Secondary language

Language:English
Title:Development of electronics of a three-phase electricity meter
Abstract:
In all kinds of measurement equipment the most important things are uncertainty, stability and immunity of measurement and ability to sense possible faults in the measured quantities. Three phase energy meter with capability of measuring an additional current and zero current respectively, was developed in a company named Strip's d. o. o. Main application of the meter is in electric switchboards, where it is used for sub-metering of electrical energy. The meter is installed behind the fuse or current breakers on the three phase or single phase load side. The meter is a component of a bigger system, which provides storage for measured characteristics of power grid and displays diagnostics of data received from meters added to the system. The present diploma thesis describes the development of the three phase energy meter, including description of design, structure of product and mathematical calculations required for measurements. Main principle of operation and data transition is presented as well. According to given functional and technical requirements, there are also presented tests of product and corresponding results. Some problems that occurred during the development of the product and data transition are pointed out.

Keywords:three phase energy meter, sub-metering of electrical energy, characteristics of power grid

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