Pregled bibliografske jedinice broj: 888152
Electric field at sharp edge as a criterion for dimensioning condenser-type insulation systems
Electric field at sharp edge as a criterion for dimensioning condenser-type insulation systems // Electric power systems research, 152 (2017), 485-492 doi:10.1016/j.epsr.2017.08.006 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 888152 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Electric field at sharp edge as a criterion for dimensioning condenser-type insulation systems
Autori
Filipović-Grčić, Dalibor ; Filipović-Grčić, Božidar ; Poljak, Miroslav
Izvornik
Electric power systems research (0378-7796) 152
(2017);
485-492
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
oil-paper condenser-type insulation ; electric field ; dielectric stresses ; power transformer bushing ; instrument transformers ; partial discharges
Sažetak
Inside the oil-paper insulation of high voltage condenser-type bushings and instrument transformers, conducting surfaces or capacitive shields have been in use for many years to control electric field distribution. Traditional insulation design methods take into consideration dielectric stresses in axial and radial directions, but experience shows that partial discharges occur in the vicinity of capacitive shield edges and can severely affect the expected life of oil-paper insulation. In this paper, a criterion for dimensioning condenser-type insulation systems is presented, based on maximum electric field at sharp edge of capacitive shield. Maximum permitted value of the electric field at the shield's edge was obtained through numerous experimental tests and numerical field calculations based on the finite element method (FEM).
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Ustanove:
KONČAR - Institut za elektrotehniku d.d.,
Fakultet elektrotehnike i računarstva, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
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