Control system and interrupter system

A control system for controlling an interrupter, the interrupter being configured to be started by a startup current to interrupt a main electric circuit, the startup current flowing through an auxiliary electric circuit and having a current valve equal to or greater than a predetermined value, the control system comprising:

• a driving unit including an intermediate electrical path to be connected to the main electric circuit;
• and
• a driven unit to be connected to the auxiliary electric circuit,
• wherein the driving unit is configured to, when an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path, use, as a drive source for driving the driven unit, the abnormal current flowing through the intermediate electrical path,
• the driven unit is configured to supply the auxiliary electric circuit with the startup current by being driven by the driving unit,
• the control system includes a first driving unit serving as the driving unit and a second driving unit,
• the control system includes a first driven unit serving as the driven unit and a second driven unit,
• the second driving unit includes a second intermediate electrical path to be connected to the main electric circuit,
• the second driven unit is to be connected to the auxiliary electric circuit,
• the second driving unit is configured to use the abnormal current as a drive source for driving the second driven unit when the abnormal current flows through the second intermediate electrical path, and
• the second driven unit is configured to supply the startup current to the auxiliary electric circuit by being driven by the second driving unit.

A control system for controlling an interrupter, the interrupter being configured to be started by a startup current to interrupt a main electric circuit, the startup current flowing through an auxiliary electric circuit and having a current valve equal to or greater than a predetermined value, the control system comprising:

• a driving unit including an intermediate electrical path to be connected to the main electric circuit;
• and
• a driven unit to be connected to the auxiliary electric circuit,
• wherein the driving unit is configured to, when an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path, use, as a drive source for driving the driven unit, the abnormal current flowing through the intermediate electrical path,
• the driven unit is configured to supply the auxiliary electric circuit with the startup current by being driven by the driving unit,
• the interrupter includes:
• a moving contactor constituting the intermediate electrical path of the driving unit;
• a fixed terminal configured to come into contact with the moving contactor;
• a holder configured to give the moving contactor holding force for keeping the moving contactor in contact with the fixed terminal;
• an auxiliary moving contact configured to move as the moving contactor moves;
• and
• an auxiliary fixed contact facing the auxiliary moving contact, and
• the moving contactor is configured to move from a first position to a second position by overcoming the holding force with electromagnetic repulsion caused by the abnormal current flowing through the moving contactor as the intermediate electrical path, one position selected from the group consisting of the first position and the second position being a position where the auxiliary moving contact is out of contact with the auxiliary fixed contact, the other position selected from the group consisting of the first position and the second position being a position where the auxiliary moving contact is in contact with the auxiliary fixed contact.

A control system for controlling an interrupter, the interrupter being configured to be started by a startup current to interrupt a main electric circuit, the startup current flowing through an auxiliary electric circuit and having a current valve equal to or greater than a predetermined value, the control system comprising:

• a driving unit including an intermediate electrical path to be connected to the main electric circuit;
• and
• a driven unit to be connected to the auxiliary electric circuit,
• wherein the driving unit is configured to, when an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path, use, as a drive source for driving the driven unit, the abnormal current flowing through the intermediate electrical path,
• the driven unit is configured to supply the auxiliary electric circuit with the startup current by being driven by the driving unit,
• the auxiliary electric circuit is connected to a current supply source configured to supply the startup current,
• the driven unit is to be connected to the auxiliary electric circuit in series with the current supply source and is driven by the driving unit to close the auxiliary electric circuit,
• the driven unit includes a semiconductor relay to be connected to the auxiliary electric circuit,
• the driving unit includes:
• a first winding forming at least part of the intermediate electrical path;
• and
• a second winding electromagnetically coupled to the first winding, and
• the semiconductor relay is driven by an induced current to close the auxiliary electric circuit, the induced current being produced in the second winding by the abnormal current flowing through the first winding.

A control system for controlling an interrupter, the interrupter being configured to be started by a startup current to interrupt a main electric circuit, the startup current flowing through an auxiliary electric circuit and having a current valve equal to or greater than a predetermined value, the control system comprising:

• a driving unit including an intermediate electrical path to be connected to the main electric circuit;
• and
• a driven unit to be connected to the auxiliary electric circuit,
• wherein the driving unit is configured to, when an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path, use, as a drive source for driving the driven unit, the abnormal current flowing through the intermediate electrical path,
• the driven unit is configured to supply the auxiliary electric circuit with the startup current by being driven by the driving unit,
• the auxiliary electric circuit is connected to a current supply source configured to supply the startup current,
• the driven unit is to be connected to the auxiliary electric circuit in series with the current supply source and is driven by the driving unit to close the auxiliary electric circuit,
• the control system includes a first switch unit serving as the driven unit and also:
• a second switch unit connected, on the auxiliary electric circuit, to the first switch unit in series and configured to open and close the auxiliary electric circuit;
• and
• a third switch unit to be connected to the main electric circuit and configured to open and close the main electric circuit,
• the second switch unit is configured to open and close the auxiliary electric circuit in synch with opening and closing of the main electric circuit by the third switch unit, and
• the second switch unit is configured to close the auxiliary electric circuit when the third switch unit closes the main electric circuit and to open the auxiliary electric circuit when the third switch unit opens the main electric circuit.

A control system for controlling an interrupter, the interrupter being configured to be started by a startup current to interrupt a main electric circuit, the startup current flowing through an auxiliary electric circuit and having a current valve equal to or greater than a predetermined value, the control system comprising:

• a driving unit including an intermediate electrical path to be connected to the main electric circuit;
• and
• a driven unit to be connected to the auxiliary electric circuit,
• wherein the driving unit is configured to, when an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path, use, as a drive source for driving the driven unit, the abnormal current flowing through the intermediate electrical path,
• the driven unit is configured to supply the auxiliary electric circuit with the startup current by being driven by the driving unit,
• the auxiliary electric circuit is connected to a current supply source configured to supply the startup current,
• the driven unit is to be connected to the auxiliary electric circuit in series with the current supply source and is driven by the driving unit to close the auxiliary electric circuit,
• the current supply source includes a transformer,
• the transformer includes:
• a primary winding to be connected to the main electric circuit;
• and
• a secondary winding electromagnetically coupled to the primary winding and configured to be connected to the auxiliary electric circuit, and
• the current supply source is configured to use the abnormal current flowing through the primary winding to supply the startup current from the secondary winding.