Type PM-B, 123-145 kV, up to 63 kA Power Circuit Breaker

The 123-145 PM-B breaker is designed with interrupter, mechanism, and bushing technology and expertise that have been field proven on ABB SF6 dead tank breakers since 1992.

The 145PM-B breaker principally consists of three cast aluminum single-piece tanks, each containing an interrupter unit, mounted on a galvanized steel support structure. Two bushings with removable current transformers mount atop each tank. A steel control cabinet is attached to the frame, while the moving contacts are gang driven by a spring-hydraulic operating mechanism within the cabinet.

Documentation and downloads

Article
Breaker factory of the future - Designing a world-class breaker factory in Pennsylvania

English - 0.41 MB - pdf

Brochure
145 kV, Type PM-B Circuit Breaker

English - 0.84 MB - pdf

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