Brochure · ROCKWILL

15kV/27kV/38kV outdoor auto break vacuum recloser

RCW-15/27/38 three-phase outdoor vacuum recloser: 15-38kV, 400-1250A, lightning impulse 110-170kV, 3s short-time 31.5kA, making peak 80kA. For distribution-network SCADA & smart-grid.

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Updated2026.09

LanguageEnglish

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brochureoutdoor auto break vacuum recloser

Document description

RCW series adopts HCEP hydrophobic cycloaliphatic epoxy solid‑dielectric insulation and bi‑stable magnetic‑actuator with lubrication‑free maintenance. Equipped with RER615/RWK‑35 IED supporting multiple communication protocols, pole‑/frame‑mountable and field‑repairable, complying with IEC 62271‑111 and IEEE C37 series recloser standards.

Frequently asked questions

How to select current sensor or current transformer specifications for Rockwill Smart Recloser?

The Rockwill standard smart recloser offers high precision with a wide measuring range (2A–16,000A). Simply ensure your normal current is within this standard range when making a selection.

Does Rockwill offer an MV Smart Auto Recloser capable of measuring primary currents as low as 0.1A?

Yes. In addition to the standard 2A–16,000A range, Rockwill provides custom-configured units for ultra-low current measurement and protection in the 0.1A–2A range.

What are the advantages of bi‑stable magnetic actuator used in RCW recloser?

It has only one moving part, no lubrication or periodic adjustment required, bi‑stable design keeps open/closed status without auxiliary power; achieves 10 000 full‑load operations with low maintenance.

What communication protocols does the matching protection IED support?

Supports IEC 61850(GOOSE), IEC 60870‑5‑101/104, DNP3.0, Modbus; simultaneous multi‑client reporting and horizontal inter‑IED GOOSE communication are available.

What safety‑related design does RCW adopt for field operation personnel?

Equipped with emergency manual trip handle; after manual tripping, mechanical‑electrical interlock blocks closing command; no maintainable electronics inside high‑voltage tank, personnel avoid entering high‑voltage zone.

15kV/27kV/38kV outdoor auto break vacuum recloser

Document description

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Frequently asked questions