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33kV 3-pole outdoor automatic circuit recloser for mv overhead line system
Technical Specifications · ROCKWILL

33kV 3-pole outdoor automatic circuit recloser for mv overhead line system

33kV 3‑pole SCADA‑ready outdoor vacuum auto‑recloser, rated current 400‑630A, short‑circuit breaking ≥12.5kA rms, IP67 hermetic tank, multi‑ratio PT, tropical‑climate‑optimized for overhead medium‑voltage utility network.

Updated2026.09
LanguageEnglish
FilePDF · 3.1 MB
33kV Auto Recloser
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Document description

This PDF utility‑grade technical specification KEJ05295 defines full technical, construction, test and accessory requirements for SCADA‑ready outdoor three‑pole automatic circuit recloser plus matching surge arrester and insulating‑cover requirements for tropical overhead‑line projects. The equipment complies with IEC 62271‑111, IEC 61643‑11 and referenced local utility specifications.

It adopts vacuum interrupter with permanently hermetically‑sealed IP67 tank, independent IP54 stainless‑steel control cubicle with 15‑meter control cable. This specification records silicone‑rubber bushing minimum 576 mm total creepage distance, ≥10 000 mechanical operations, multi‑ratio 33‑22‑11kV /0.24kV 500VA potential transformer, SPD with auto‑reset ELCB, rich protection‑logic suite, non‑volatile 500‑event disturbance recorder, LCD‑LED local HMI, support for IEC 60870‑5‑101 / DNP3.0 SCADA protocols, 48‑hour battery back‑up, ground‑level colour‑coded open‑close position indication, manual maintenance‑operation function, lifting lugs and dual‑side arrester mounting brackets.

Document also includes mandatory type‑test / routine‑test / FAT requirements, appendix compliance matrix, and references companion specifications for matching 10kA polymeric surge arrester and animal‑proof insulating covers. Custom‑manufacturing, function adjustment and project‑specific factory‑acceptance‑test are available for tropical utility overhead‑grid tender projects. Please contact us for full compliance matrix, dimension drawings and complete type‑test reports.

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Frequently asked questions

Specification‑text is for technical‑reference only. Please contact us for complete compliance‑matrix and tender‑ready specification documents for formal bidding‑submission.

Custom‑made services include secondary‑protection‑function tuning, communication‑interface configuration, accessory‑selection and project‑defined factory‑acceptance‑test‑items. Please contact us to submit your technical‑specification.

Hermetically‑sealed IP67 tank, UV‑resistant silicone‑rubber bushings, full anti‑corrosion treatment, and humidity‑adapted control‑cubicle heater cope with high‑temperature, high‑humidity and heavy‑rainfall tropical site‑conditions. Please contact us for tropical‑environment‑adaptation guidance.

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