Abb Technology Ag

Abb Schweiz Ag

Abb Inc.

Pierino Bertolotto

Gianluca Cortinovis

Francesco Belloni

Giorgio Moriconi

Pierluigi Invernizzi

A switching apparatus including one or more electric poles. For each electric pole, the switching apparatus includes a first pole terminal, a second pole terminal, a ground terminal, and a plurality of fixed contacts spaced apart one from another. For each electric pole, the switching apparatus further includes a movable contact and a vacuum interrupter. The vacuum interrupter includes a fixed arc contact and a movable arc contact reversibly movable along a corresponding translation axis between a coupled position with the fixed arc contact and an uncoupled position from the fixed arc contact. For each electric pole, the switching apparatus further includes a motion transmission mechanism operatively coupled to a contact shaft coupled to the movable arc contact. The motion transmission mechanism is actuatable by the movable contact to cause a movement of said movable arc contact along said translation axis, when said movable contact moves about said rotation axis.

Medium voltage switching apparatus

An electric switching device for an electric circuit, including at least one electric phase having at least one circuit breaking unit associated with a disconnector unit. The circuit breaker unit including a circuit breaker movable contact configured to be actuated between a closed position and an open position with respect to a corresponding circuit breaker fixed contact. The disconnector unit includes at least one disconnector movable contact configured to be actuated between a connection position and a disconnection position with respect to a corresponding disconnector fixed contact. A casing that includes an insulating shell coupled to a metal shell. The casing houses at least the circuit breaker unit and the associated disconnector unit of said at least one electric phase.

Electric switching device and related electric apparatus

A Medium Voltage circuit breaker which comprises a pole assembly having, for each phase, an interruption chamber housing a first fixed contact and a second movable contact reciprocally couplable/uncouplable between an open and close position; the Medium Voltage circuit breaker further comprises an actuator to actuate the opening and closing operation of said circuit breaker and an insulating base frame supporting said pole assembly and said actuator.

Growing community of inventors

Bergamo, Italy

Pierino Bertolotto