Proračun Stacionarnog Isticanja Sf6 Gasa Kroz Mlaznicu 420kv Prekidača I Raspodjele Električnog Polja

Dejan Bešlija; Mirsad Kapetanović; Sead Delić; Almir Ahmethodžić

doi:10.2478/bhee-2013-0001

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Proračun Stacionarnog Isticanja Sf6 Gasa Kroz Mlaznicu 420kv Prekidača I Raspodjele Električnog Polja

B&H Electrical Engineering

Volume 7 (2013): Issue 1 (December 2013)

By: Dejan Bešlija, Mirsad Kapetanović, Sead Delić and Almir Ahmethodžić

Open Access

|Dec 2013

Abstract

Posebna pažnja kod prekidanja struje se posvećuje procesima u blizini strujne nule, tzv. području interakcije, koje određuje performanse prekidača. Veličine od interesa u ovom intervalu su raspodjela temperature, gustine i pritiska, brzine i masenog protoka duž ose električnog luka, kao i raspodjela električnog naprezanja u međukontaktnom prostoru.

U radu su pomoću programa ANSYS FLUENT^® izvršeni proračuni stacionarnog isticanja SF₆ gasa kroz mlaznicu u trenutku strujne nule na primjeru mlaznice 420 kV prekidača, za različita trajanja električnog luka. Rezultati proračuna su iskorišteni za uočavanje mogućnosti unapređenja modela isticanja SF₆ gasa korištenog u programu za računarsku simulaciju rada visokonaponskog (VN) prekidača. Proračun raspodjele električnog polja u programu CEDRAT Flux2D^® na primjeru istog 420kV prekidača je korišten da se procijeni vrijednost probojnog napona u strujnoj nuli.

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Articles in this issue

DOI: https://doi.org/10.2478/bhee-2013-0001 | Journal eISSN: 2566-3151 | Journal ISSN: 2566-3143

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Language: English

Page range: 4 - 12

Published on: Dec 31, 2013

Published by: Bosnia and Herzegovina National Committee CIGRÉ

In partnership with: Paradigm Publishing Services

Publication frequency: 2 issues per year

Keywords:

VN SF6 prekidač,

SF6 gas,

mlaznica,

režim isticanja gasa,

udarni talas,

probojni napon

Related subjects:

Computer sciences,

Computer sciences, other,

Engineering,

Electrical engineering,

Fundamentals of electrical engineering,

Mechanical engineering,

Mechatronics and automotive

© 2013 Dejan Bešlija, Mirsad Kapetanović, Sead Delić, Almir Ahmethodžić, published by Bosnia and Herzegovina National Committee CIGRÉ
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 7 (2013): Issue 1 (December 2013)