Tretman nul-točke transformatora u industrijskim postrojenjima

professional thesis

• Title (english): Transformer neutral point treatment in industrial facilities
• Author: Branimir Burić
• Mentor: Ivica Pavić (mentor)
• Committee member: Ante Marušić (predsjednik povjerenstva)
• Committee member: Ivica Pavić (član povjerenstva)
• Committee member: Dalibor Filipović-Grčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U praksi postoji nekoliko načina tretmana nul-točki transformatora u srednjenaponskim mrežama. Svaki od načina ima svoje prednosti i nedostatke, gledano s tehničke i ekonomske strane. Stoga je potrebno svaku mrežu sagledati posebno, te na osnovu svih karakteristika i specifičnosti zaključiti odgovarajuće rješenje. Posebno je potrebno obratiti pozornost na pouzdanost napajanja električnom energijom, pošto svaki zastoj proizvodnih postrojenja predstavlja velike gubitke proizvodnje, a time i veliku novčanu štetu. U radu su opisani najčešće korišteni načini uzemljenja nul-točke, te je modelirana srednjenaponska mreža u softverskom alatu ETAP 12.6. Dobiveni rezultati su poslužili za prijedlog odabira adekvatnog tretmana dostupnih nul-točka.

Abstract (english)

There are few ways of treatment transformers neutral point in medium voltage networks. Each method has its own certain advantages and disadvantages, from the technical and economical point of view. Therefore, it is nessessery to analyze each network individually, and make right solution, on the base od networks specifics and characteristics. Especially, its very important to take care regarding power supply reliabillity, becouse each outage od production plants generates lost of production and financial damage. This paper describes the most common methods od earthning transformers neutral with modelling of medium voltage network in program tool ETAP 12.6. Obtained results were usefull to find a adecvate solution for transformer neutral earthning.

• Keywords: Nul-točka; transformator; kratki spoj; srednjenaponska mreža; impedancija
• Keywords (english): Neutral point; transformer; short-circuit; medium-voltage network; impedance
• Language: croatian
• URN:NBN: urn:nbn:hr:168:490117
• Study programme: Title: Postgraduate specialist Study in Transformers; Study programme type: university; Study level: postgraduate specialist; Academic / professional title: sveučilišni/a specijalist/specijalistica transformatora (sveučilišni/a specijalist/specijalistica transformatora)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2022-09-27 12:11:42