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(Solved): An air bushing in Figure 1a and a cross section of this bushing in Figure 1b is seen. Here, two la ...



?ekil lada bir haval? geçit izolatörü ve ?ekil lbde bu geçit izolatör?nün enine kesiti gör?lmektedir. Burada, tabakalar?n b

An air bushing in Figure 1a and a cross section of this bushing in Figure 1b
is seen. Here, two layers with relative dielectric constants ?r1=1 and ?r2=6
voltage of 36kV in a three-phase bushing consisting of different insulating layers
has been applied. Conductor diameter is 2 cm and flange diameter is 18 cm.
a) In the first layer (air,
Ed1=30 kV/cm) to avoid any discharge
Calculate the maximum air layer thickness.
b) if aair=0.6cm is selected since aair is the thickness of the air layer
Calculate the maximum electric field strength values ??in the layers.

???????

?ekil la'da bir haval? geçit izolatörü ve ?ekil lb'de bu geçit izolatör?nün enine kesiti gör?lmektedir. Burada, tabakalar?n ba??l dielektrik sabitleri \( \boldsymbol{r r}_{1}=1 \) ve \( \mathrm{rr}_{2}=6 \) olan iki farkl? yal?tkan tabakadan olu?an üç fazl? bir geçit izolatör?nde \( 36 \mathrm{kV} \) 'luk gerilim uygulanm??t?r. ?letken çap? \( 2 \mathrm{~cm} \) ve flan? çap? \( 18 \mathrm{~cm} \) 'dir. a) Birinci tabakada (hava,Ed \( \mathrm{d}_{1}=30 \mathrm{kV} / \mathrm{cm} \) ) herhangi bir bo?alma olmamas? için maksimum hava tabakas? kal?nl???n? hesaplay?n?z. (10p.) b) a a hava hava tabas? kal?nl??? oldu?una göre \( \mathrm{a}_{\mathrm{hava}}=0.6 \mathrm{~cm} \) olarak seçilmesi durumunda tabakalardaki maksimum elektrik alan ?iddeti de?erlerini hesaplay?n?z.(10p.) (a) (b) ?ekil 1 (a) Haval? geçit izolat?rü (b) Geçit izolatörün?n enine kesiti


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In Figure we can see there are two layers with relative dielectric constants ?r1=1 and ?r2=6 ve Voltaj V=36 KV Yal?t?m katmanlar? seri oldu
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