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Outdoor TerminationsDdu ndi ngodi troi
Pollution leverMtitc dO 6 nhi6m
The outdoor terminations, for 66-230kV are available forboth the EPR-based rubber stress relief cone with an epoxyhousing (so called pre-fabricated type) and the siliconerubbersleeve (so called pre-molded type).The former uses mechanical devices to maintain theinterface pressure and the latter uses elastic retention ofsilicone material itself.ln both cases, the main insulation components are fullyexamined and tested in the factory. The maximum allowablecable conductorsize is 2500mm2.Upon request of the customer, eithetporcelain or compositehollow insulatorcan be supplied.
Ddu ndi ngoititrdi cho c6p 66kV-230kV co hai loai, loqithunhdt co dqng hinh non vd d+ta trqn sa suy giem (ng sudt clacao su co bdn (EPR) vOiv6la epoxy ggilit (loaidlc sdn - Pre-
Rubber sreeve fabricated type), loqi tho hai co dang 6ng mdng s1ng cao sud{atrOn Silicone ggila (loai khuOn - Pre-molded).Ban ddu cdcthi6t bi co hocduoc s0dqng dd duytri dO nen, v6sau s0 dung chinh tinh chdt ditn hdi c(ta vQt liQu Silicone ddduytri d6 nen.Trong cA hai traong hop, cac thdnh phdn cach dien chinhlu1n dlrqc kidm tra, th(t nghiQm tai nhd may. Kch cd l6i lonnhdtlit2500mm2.Tuy theo yOu cdu cla khitch hitng, cdch di6n hoan todn bdngs0 hay hop chdt se dnqc cung cdq.
Pre-fabricated type Pre-rnolded type
Selection of insulators with respect to polluted conditions (based on IEC 50815)Ltta chon cdch di6n vai di6u ki€n 6 nhiSm cqt th6 (Dqta {r&n IEC 6AU 5)
Minimum nominal specific creepage distanceChi6u ddi dd danh dinh nh6 nhdt
ht/ Nhe 16mm/kV
ll Medium / 7i 20mm/kV
25mm/kV
heavy I Rdt ndng 31mm/kV
Rating and dimension I TY l$ vd kicft thaac
Rated Voltage(kv) / Cdp di6n 6p 66 110 132 161 230
Max. Voltage(kV I Dien ep cLrc dqi 72.5 123 145 170 245
BIL(kV) I Di6n 5p xung 325 550 650 750 1 050
Max. height(mm) / Chidu cao l6n nhdt 1000 1 500 2410 2410 3500
Max. Weight(kg) I Kh6iluqng ldn nhdt 100 200 700 800 900
Max. Creepage Distance(mm)
Tdng chi6u ditidtdng do l6n nhdt(mm)
2500 4300 5000 6000 8400
26 | Exira h,gh voliage cble
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