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Polaganje 110 kV kablov za zagotovitev optimalnih termičnih razmer med obratovanjem : ref. št. 1926Janša, Marko, 1965-2022 ; Perhavec, MatevžPrenosna zmogljivost kablovoda je dolocena s termicnimi lastnostmi samega kabla kot tudi medija v katerega je kabel položen, saj oba skupaj vplivata na termicni profil kablovoda. Termicne lastnosti ... kablovoda so bile obdelane že v študiji ref. 1741 [TE-TaL-Polje], v predmetni študiji pa je detaljnejše obdelana problematika segrevanja in vpliv nacina polaganja in razporeditve kablov posameznih faz in sistemov na oblikovanje termicnega profila kablovoda. Pri obratovanju kablovoda ne sme biti presežena predpisana najvišja temperatura vodnika in kovinskega zaslona v obratovanju in pri kratkem stiku. Vsa toplota, ki nastane zaradi izgub se mora odvesti v okolico. To je mogoce zagotoviti z izbiro ustrezne konstrukcije kabla, prereza vodnika in primernim nacinom polaganja s poudarkom na formaciji, nacinu ozemljitve kovinskih zaslonov ter izbiri zasipnega materiala in dimenzioniranju kabelske posteljice. Posebno pozornost je potrebno posvetiti spojkam, križanjem z drugimi infrastrukturnimi vodi in paralelnim potekom z le-temi, ker te predstavljajo šibka mesta na katerih se pojavijo povecane termicne obremenitve. Križanja so vecinoma izvedena s polaganjem kablov v PE cevi. Te morajo biti popolnoma zapolnjene z ustreznim (termicno stabilnim) zasipnim materialom. Z uporabo racunalniškega modela so izdelani izracuni termicnega profila v okolici kabla. Obravnavani so razlicni nacini polaganja v kombinaciji z izbiro razlicnih zasipnih materialov (razlicne vrednosti zunanje toplotne upornosti) ter raziskani njihovi vplivi na obremenljivost in temperaturo vodnika.Type of material - treatise, studyPublication and manufacture - Ljubljana : Elektroinštitut Milan Vidmar, 2008Language - slovenianCOBISS.SI-ID - 30442757
Author
Janša, Marko, 1965-2022 |
Perhavec, Matevž
Topics
daljnovodi |
kabli |
kablovodi |
vodniki |
izolacija |
dielektriki |
notranji polprevodni sloji |
zunanji polprevodni sloji |
kovinski zasloni |
elektroenergetski sistemi |
obremenljivost |
ozemljitve |
izgube |
energetika
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Janša, Marko, 1965-2022 | 13805 |
Perhavec, Matevž | 32907 |
Source: Personal bibliographies
and: SICRIS
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