Catalogue · ROCKWILL

RVD-145 Dead tank vacuum circuit breaker

RVD-145 dead-tank vacuum circuit breaker: 145kV, 3150A, lightning impulse 650kV, 3s short-time 50kA, making peak 135kA. For 145kV power transmission applications.

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Updated2026.09

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Dead tank vacuum circuit breakercatalogue

Document description

Rockwill RVD‑145 dead‑tank vacuum circuit breaker has rated voltage 145 kV, rated normal operating current 3150 A, lightning impulse withstand voltage 650 kV, 3‑s short‑time withstand current 50 kA and rated short‑circuit making peak current 135 kA for 145 kV power transmission applications.

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Frequently asked questions

What insulation medium does RVD‑145 adopt? What are its environmental‑friendly advantages?

Insulation medium is clean air (80% nitrogen +20% oxygen), zero SF₆ and fluorinated‑gas, GWP=0, non‑toxic, no toxic decomposition products; no gas‑disposal work at end‑of‑life.

Does RVD‑145 support integrated instrument transformer? What is LPIT?

Optional LPIT (Low‑Power Instrument Transformer) can be integrated, which combines CT & VT functions in one single unit, fulfills both protection and metering requirements, reduces overall equipment size and weight.

What are the operating‑sequence and drive‑mechanism for RVD‑145?

Equipped with stored‑energy spring drive mechanism. Rated operating sequences: O‑0.3s‑CO‑3min‑CO and CO‑15s‑CO. Rated filling absolute pressure of clean air is 0.8 MPa.