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Outdoor Pole Mounted Automatic Circuit Recloser in substation-35kV

  • Outdoor Pole Mounted Automatic Circuit Recloser in substation-35kV

Key attributes

Brand ROCKWILL
Series RCW
Rated voltage 35kV
Rated current 630/1250/1600A
Rated frequency 50/60
Description
This outdoor high‑voltage automatic circuit recloser is designed for 3‑phase AC 50Hz power systems with a rated voltage of 35kV. It is capable of switching on/off load current, overload current and short‑circuit current reliably.
Equipped with an intelligent recloser controller, it identifies current characteristics to perform multiple automatic reclosing operations. Powered by an integrated potential transformer (PT), it serves as a smart circuit breaker with voltage and current signal output. Supported by electronic PT power supply, it provides three‑stage composite protection including overcurrent delay, inrush current delay and fast short‑circuit breaking, ensuring safe and stable distribution network operation.

Key Features

  • Pillar‑type Integrated Structure:Adopting a pillar‑type overall layout, the three‑phase main units are installed on one shared mechanism box. The moving end of the arc‑extinguishing chamber is connected to the operating mechanism output shaft via crank arms and insulated tie rods. The operating mechanism and connecting components are fully enclosed in a waterproof housing. Driven by the output‑shaft rotation, the transmission system realizes stable opening and closing of contacts inside the arc‑extinguishing chamber.
  • Flexible Current Transformer Setup:Built‑in current transformers are fitted for each phase, with four windings per phase (two for metering, two for protection). Multiple transformation ratios are available to meet different monitoring and protection requirements.
  • Optional Isolating Switch with Visible Isolation Point:An external high‑voltage isolating switch can be integrated to form a combined unit. It provides clear visible isolation gaps and reliable mechanical interlocks, significantly improving safety during maintenance and power‑off operations.

Product Showcase Video

Technical parameter

Item Unit  Data
Rated voltage kV 35
Power frequency withstand voltage 1min (wet) (dry) kV 80/95
Lightning impulse withstand voltage (peak value) kV 185
 Rated short circuit breaking current  kA 25
Rated short circuit making current (peak value)  kA 80

Dimensions Reference

RCW-35 Dimensions Reference

When placing an order, please specify product type, model, quantity, rated current, rated short‑circuit breaking current, CT ratio, operation mode and operating voltage

Working conditions

Item Specification
Ambient Air Temperature -30℃ ~ +60℃
Altitude ≤2000 m
Maximum Wind Speed ≤34 m/s
External Vibration & Ground Movement Negligible
Pollution Class Class IV
Storage Temperature -40℃ ~ +85℃

Application Scenarios

  • Widely used in overhead distribution lines, rural power grids, industrial parks, mining power supply systems and new‑energy distribution networks. It automatically isolates short‑circuit faults for rapid power recovery, serving as core equipment for intelligent and stable medium‑voltage distribution networks.

Case Studies - Automatic Circuit Recloser

  • Rockwill Ukraine 186 Units 12kV Outdoor Vacuum Recloser Project Success Case
    In response to the operational characteristics of Ukraine’s local power grid and targeting harsh high-latitude outdoor working conditions, we rely on core technologies of intelligent reclosing and self-healing to precisely adapt to the complex grid environment with frequent thunderstorms and drastic diurnal temperature variations, steadily promoting the automatic and intelligent upgrade of regional rural power grids and suburban distribution networks.01 Project Overview1.1 Project BackgroundIn 2
  • Successful Case of 170 Sets of 11kV Automatic Recloser Project in Kenya
    Against the backdrop of quality upgrading for Kenya’s urban and rural power grids, 11kV auto-reclosers deliver reliable performance to suit local climates and grid conditions. It enables rapid fault isolation and efficient operation and maintenance, forming a core safeguard for the upgrading of Kenya’s urban and rural distribution networks.01 Project Overview1.1 Project BackgroundIn May 2023, 170 sets of 11kV Automatic Reclosers (Model: RCW12M) were officially supplied and applied to the medium-
  • DTEK Grid Upgrade: Operation of Rockwill 10kV Smart Recloser in -40°C Extreme Cold Environment Ukraine Case Study
    As a benchmark for Chinese‑manufactured medium‑voltage distribution equipment going global, Rockwill established in‑depth cooperation with DTEK Kyiv Power Grid, Ukraine. Tailored outdoor vacuum recloser solutions were mass‑deployed to address existing weaknesses in local 10 kV distribution networks, comprehensively improving regional power supply reliability and automation to build a flagship distribution grid modernization project in Kyiv.01 Project Background: Core Pain Points of DTEK Kyiv Dis

Related Blogs - Automatic Circuit Recloser

  • Rockwill RCW Series Automatic Circuit Reclosers: World-Class Technology & Global Track Record
    The Rockwill RCW Series Automatic Circuit Reclosers are intelligent Automatic Circuit Reclosers (ACR) fully compliant with both IEC 62271-111 and ANSI/IEEE C37.60 international standards, covering the full voltage range from 11kV to 38kV for 50/60Hz power systems. As a pioneer in China's recloser sector and a leading medium-to-high voltage power equipment original manufacturer, Rockwill serves over 100 countries worldwide, offering a Chinese-origin solution that competes head-to-head with intern

Documentation Resource Library Automatic Circuit Recloser

Public.
Outdoor Pole Mounted Automatic Circuit Recloser 40.5kV Flyer Outdoor Pole Mounted Automatic Circuit Recloser 40.5kV Flyer
Brochure
English
Public.
Rockwill Electric Group Profile Rockwill Electric Group Profile
Brochure
English
Restricted
RCW MV outdoor vacuum recloser installation manual RCW MV outdoor vacuum recloser installation manual
Operating Instruction
English
PDF

Frequently asked questions

Yes. We can customize the overall shape, mounting bracket size, cabinet material and anti‑corrosion grade according to pole type and installation space, to adapt to pole‑mounted working conditions in different regions.

This 35kV outdoor high‑voltage automatic recloser is applicable to 3‑phase AC 50Hz power systems. It can reliably switch load current, overload current and short‑circuit current.
Equipped with an intelligent controller and electronic PT power supply, it supports multi‑times automatic reclosing and provides three‑stage composite protection including overcurrent delay, inrush current delay and fast short‑circuit breaking, effectively ensuring safe and stable operation of distribution networks.
It adopts a fully enclosed pillar‑type integrated structure with high waterproof and operational stability. Each phase is equipped with built‑in current transformers with four windings (two for metering, two for protection), supporting multiple CT ratios to meet diverse monitoring and protection needs. The integrated PT provides stable power supply and voltage & current signal output for intelligent operation.

Know your supplier

Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m² Total staff: 700+ Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: Medium and High Voltage Switchgear/Power and Distribution Transformers/Instrument Transformers and Sensors/Lightning Protection and Electrical Insulation/Substations and E-Houses/Electrical Panel and Controlgear
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