| Brand | ROCKWILL |
| Model NO. | 38kV outdoor Auto Circuit vacuum recloser |
| Rated voltage | 38kV |
| Rated normal current | 630A |
| Rated short circuit breaking current | 16kA |
| Power frequency withstand voltage | 90kV/min |
| Rated lightning impulse voltage | 195kV |
| manual closing | No |
| Mechanical lock | No |
| Series | RCW |
Description：
The RCW series automatic circuit reclosers can use on overhead distribution lines as well as distribution substation applications for allvoltage classes 11kV up to 38kV at 50/60Hz power system. and it’s rated current can reach 1250A.The RCW series automatic circuit reclosers integrates the functions of control, protection, measurement, communication, fault detection, on-line monitoring of closing or opening.The RCW series vacuum recloser is mainly combined with integration terminal, current transformer, permanent magnetic actuator and it’s recloser controller.
Features：
Optional grades available in rated current range.
With optional relay protection and logic for user selection.
With optional communication protocols and I/O ports for users to choose.
PC software for controller testing, setup, programming, updates.
Parameters：
Environmental requirement：
Product show：
What are the structural characteristics of outdoor vacuum recloser?
Vacuum Arc Quenching Chamber: The core component that uses a vacuum environment to extinguish arcs. It offers advantages such as strong breaking capacity, fast dielectric recovery, and long contact life, effectively ensuring the reliability of the equipment when interrupting fault currents.
Insulating Pillars: Typically made from high-strength, weather-resistant insulating materials such as epoxy resin, these pillars provide reliable insulation support for the vacuum arc quenching chamber and other components, ensuring the insulation performance of the equipment in harsh outdoor environments.
Operating Mechanism: Common types include spring-operated mechanisms and permanent magnet-operated mechanisms. Spring-operated mechanisms are simple in structure, highly reliable, and easy to maintain. Permanent magnet-operated mechanisms, on the other hand, offer advantages such as fast action, low energy consumption, and long mechanical life, enabling quick and precise opening and closing operations of the recloser.
Current Transformers and Voltage Transformers: Some reclosers are equipped with current transformers and voltage transformers to measure current and voltage signals in the line. These transformers provide data support for protective devices and control devices, enabling the monitoring and protection functions of the power system.
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SF6-Free Solution for Air-Insulated/Eco-friendly Gas Ring Main UnitsⅠ. Technical Bottlenecks of SF₆ SubstitutionInsulation Medium Performance Gapo Dried Air/N₂ insulation strength is only 1/3 of SF₆, requiring expansion of contact gap from 60mm to ≥150mm.o Conventional spring mechanisms lack energy to drive rapid closure of large gaps, easily causing contact ablation due to pre-strike.o Synthetic gases (e.g., C4+CO₂) decompose under arcing, leading to irreversible insulation degradation.Mechanical Structural Limitationso National Grid standardization fixRockwill16/08-2025 -
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Pressure Relief Safety Solution for Gas-Insulated Ring Main UnitsⅠ. Problem ContextAs a core component in urban power distribution networks, ring main units (RMUs) are widely used in residential areas, factories, and public buildings due to their compact structure, low cost, and high reliability. However, internal equipment failures or arc faults may generate high-temperature, high-pressure gas, leading to cabinet explosions that endanger personnel and equipment. While traditional sealed designs maintain insulation integrity, they fail to rapidly release sudRockwill16/08-2025
