This switchgear integrates a three-position vacuum circuit breaker, combining the functions of circuit breaking, earthing and isolation in one single pole. It is designed for medium-voltage AC power distribution systems with rated voltage up to 12 kV.
Adopting vacuum interrupter for arc extinction, the equipment features compact structure, small overall dimension, high reliability and safe interlock logic. It is equipped with complete electrical and mechanical interlocks to prevent misoperation: closing the earthing switch when live, closing the main switch while earthing is closed, and opening the door under live condition.
It is widely used in power plants, substations, industrial and mining enterprises, renewable energy stations, as well as residential power distribution networks. It can realize switching load current, overload protection and short-circuit protection, suitable for indoor installation.
• Integrated three-position function: working, isolated and earthed positions
• Vacuum arc-extinguishing chamber, free of maintenance for breaking part
• Reliable electrical & mechanical interlock system
• Compact layout, easy installation and commissioning
• Metal-enclosed, metal-clad, degree of protection IP4X
