Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona

Gavranić, Ivica

prikaz prve stranice dokumenta Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona

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scientific master's theses

Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona

Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2002. urn:nbn:hr:168:017400

Gavranić, Ivica

University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electric Machines, Drives and Automation

Cite this document

APA 6th Edition

Gavranić, I. (2002). Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:017400

MLA 8th Edition

Gavranić, Ivica. "Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2002. https://urn.nsk.hr/urn:nbn:hr:168:017400

Chicago 17th Edition

Harvard

Gavranić, I. (2002). 'Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 18 March 2025, https://urn.nsk.hr/urn:nbn:hr:168:017400

Vancouver

Gavranić I. Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2002 [cited 2025 March 18] Available at: https://urn.nsk.hr/urn:nbn:hr:168:017400

IEEE

I. Gavranić, "Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2002. Available at: https://urn.nsk.hr/urn:nbn:hr:168:017400

Cite this item: https://urn.nsk.hr/urn:nbn:hr:168:017400

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Metadata

Title	Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona
Author	Ivica Gavranić
Mentor	Drago Ban (mentor)
Committee member	Ivan Ilić (predsjednik povjerenstva)
Committee member	Drago Ban (član povjerenstva)
Committee member	Nenad Marinović (član povjerenstva)
Granter	University of Zagreb Faculty of Electrical Engineering and Computing (Department of Electric Machines, Drives and Automation) Zagreb
Defense date and country	2002-10-01, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Electrical Engineering Electromechanical Engineering
Universal decimal classification (UDC)	621.3 - Electrical engineering
Abstract	U magistarskom radu su opisane metode tehničke dijagnostike kaveznih asinkronih elektromotora primjenjive na protueksplozijski zaštićene elektromotorne pogone. Analiziran je utjecaj parametara ugroženog prostora na primjenu dijagnostičkih metoda, te posebni zahtjevi kod ispitivanja u uvjetima ugroženosti eksplozijom. U laboratorijskim su uvjetima provedena ispitivanja elemenata protueksplozijske zaštite na elektromotorima u vrsti zaštite oklapanje - ”d”, povećana sigurnost - ”e” i nadtlak - ”p”. Ispitivanja i analize rezultata su obavljeni u skladu s normama iz područja protueksplozijske zaštite, važećim u Republici Hrvatskoj. Definirane su potrebne radnje za otklanjanje utvrđenih nedostataka. Razmotren je utjecaj pretvarača frekvencije, preko kojih se napajaju suvremeni protueksplozijski zaštićeni elektromotorni pogoni, na parametre motora značajne sa stanovišta protueksplozijske zaštite. U pogonskim su uvjetima, primjenom metode analize spektra linijske struje namota statora, provedena ispitivanja stanja kaveza i dinamičke ekscentričnosti na motorima snage 1.9 MW i 500 kW u vrsti protueksplozijske zaštite povećana sigurnost - ”e”. Temeljem dobivenih rezultata je ocjenjeno stanje kaveza rotora i dinamičke ekscentričnosti, te su definirane potrebne servisne aktivnosti i daljnja periodička ispitivanja.
Abstract (english)	In this M.S. thesis, methods of technical diagnostics of squirrel-cage induction motors that are applicable to explosion-proof electric motor drives are described. The influence of hazardous area parameters on application of diagnostic methods is analysed, and also an analysis is given of special requirements for tests in the conditions of explosion hazard. Elements of explosion protection of electric motors designed in types of protection Flameproof enclosures - ”d”, Increased safety - ”e” and Pressurized - ”p” were tested in laboratory conditions. The tests and analyses were made in accordance with standards that are valid for explosion protection in the Republic of Croatia. The actions necessary to eliminate the detected defects are specified. The influence of frequency converters for feeding modern explosion-protected electric motor drives on parameters of the motor that are relevant in terms of explosion protection is considered. The condition of the squirrel cage and the dynamic eccentricity were tested on 1,9 MW and 500 kW motors with explosion protection type Increased safety - ”e”. The tests were made in operating conditions, applying the spectral analysis method to stator winding line current. The obtained results were used for assessment of the condition of rotor squirrel cage and the dynamic eccentricity, and also to define the necessary servicing activities and further periodic tests.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:168:017400
Study programme	Title: Postgraduate master programme in electrical engineering Study programme type: university Study level: postgraduate Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Type of resource	Text
File origin	Born digital
Access conditions	Closed access
Terms of use
Repository	FER Repository
Created on	2019-04-30 08:30:23