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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

Institutional repository: FER Repository

Cite this document

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

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

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

Gavranić, I. (2002). 'Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 14 July 2024, https://urn.nsk.hr/urn:nbn:hr:168:017400

Gavranić I. Dijagnostika protueksplozijskih zaštićenih elektromotornih pogona [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2002 [cited 2024 July 14] Available at: https://urn.nsk.hr/urn:nbn:hr:168:017400

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

Metadata
TitleDijagnostika protueksplozijskih zaštićenih elektromotornih pogona
AuthorIvica Gavranić
MentorDrago Ban (mentor)
Committee memberIvan Ilić (predsjednik povjerenstva)
Committee memberDrago Ban (član povjerenstva)
Committee memberNenad Marinović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electric Machines, Drives and Automation)
Zagreb
Defense date and country2002-10-01, 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)
Languagecroatian
URN:NBNurn:nbn:hr:168:017400
Study programmeTitle: Postgraduate master programme in electrical engineering
Study programme type: university
Study level: postgraduate
Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsClosed access
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Created on2019-04-30 08:30:23