Property Specification
Type: High-Voltage Disconnecting Circuit Breaker / Integrated Switch-Disconnector Platform (145 kV and 420 kV)
Features: Combining circuit breaking and line isolation inside a single SF6-insulated gas compartment, this dual-function unit eliminates external air-exposed disconnect gaps to protect contact surfaces from environmental degradation., it incorporates a thoroughly tested mechanical safety interlock that prevents accidental closing while in disconnector mode, complemented by visual and electrical position tracking, it drastically reduces substation footprint, steel structures, and civil foundation costs while offering optional structure-mounted earthing switches for ratings up to 145 kV.
Applications: Compact 145 kV and 420 kV transmission substations, heavily polluted or severe climate zones where outdoor air disconnectors suffer accelerated wear, space-constrained urban switchyards, substation bay extensions requiring minimized civil works, and utility feeder circuits needing integrated switching, isolation, and grounding capabilities.
