Switching device for an electrical circuit and a method for controlling such switching device

An electrical installation, comprising:

• at least one switching device for an electric circuit, said switching device comprising:
• at least one phase having a movable contact which can be coupled to/separated from a corresponding fixed contact;
• a kinematic chain operatively associated to said movable contact;
• driving means adapted to move said kinematic chain at least between a first position and second position for actuating said movable contact;
• and
• control means adapted to control the driving means;
• wherein said kinematic chain is adapted to reach said second position from said first position before reaching a dead-point position and in that said control means are adapted to:
• detect a loss condition of a power supply associable to and suitable for operating the switching device, while the kinematic chain is in the second position;
• and
• control driving means to move the kinematic chain away from the second position when said loss condition is detected, in such a way that the kinematic chain passes through said dead-point position and reaches a third position between the dead-point position and corresponding blocking means of the switching device.

A method for controlling a switching device for an electric circuit comprising:

• operating the switching device comprising:
• at least one phase having a movable contact which can be coupled to/separated from a corresponding fixed contact;
• a kinematic chain operatively associated to said movable contact;
• and
• driving means adapted to move said kinematic chain at least between a first position and a second position for actuating said movable contact;
• said kinematic chain being adapted to reach said second position from said first position before reaching a dead-point position;
• detecting) a loss condition of a power supply associable to and suitable for operating the switching (1), while the kinematic chain is in the second position;
• and
• controlling the driving means to move the kinematic chain away from the second position when said loss condition is detected, in such a way that the kinematic chain passes through said dead-point position and reaches a third position between the dead-point position and corresponding blocking means of the switching device.

A switching system comprising:

• a switching device for an electric circuit, said switching device comprising at least one phase having a movable contact which can be coupled to or separated from a corresponding fixed contact,
• a kinematic chain operatively associated to said movable contact and adapted to reach said second position from said first position before reaching a dead-point position,
• a driving means adapted to move said kinematic chain at least between a first position and a second position for actuating said movable contact, and
• a non-transitory computer readable medium structured to store executable instructions configured to operate the driving means so as to:
• detect a loss condition of a power supply associable to and suitable for operating the switching device, while the kinematic chain is in the second position;
• and
• control the driving means to move the kinematic chain away from the second position when said loss condition is detected, in such a way that the kinematic chain passes through said dead-point position and reaches a third position between the dead-point position and corresponding blocking means of the switching device.