Electrical Switching Device
AssigneeSiemens Aktiengesellschaft
InventorsTorsten Kuntze, Carsten Protze, Dirk Schrader
Life of this patent
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Abstract
An electrical switching device has a first interrupter unit for interrupting and connecting an electrical line, in particular an air-insulated grounding switch. A method for switching an air-insulated grounding switch assures that no arc owing to a voltage flashover is produced on the air-insulated grounding switch. A second interrupter unit, which is connected in parallel with the first interrupter unit, can be switched such that resultant striking of an arc during switching only takes place in the second interrupter unit.
Claims18
1-12. (canceled)
An electrical switching device, comprising:
- a first interrupter unit for selective interruption and connection of an electrical line;
- at least one second, nearly closed interrupter unit connected to said first interrupter unit;
- wherein said second interrupter unit is switchable before said first interrupter unit on connection of the electrical line and after the first interrupter unit on interruption of the electrical line, and wherein voltage flashovers occurring on connection or interruption of the electrical line occur as arcs in said second interrupter unit.
A method for switching an air-insulated grounding switch of an electrical line connected to the grounding switch, which comprises:
- providing a second interrupter unit disposed in parallel with the air-insulated grounding switch;
- for connecting the electrical line, closing the second interrupter unit before the air-insulated grounding switch;
- and
- for disconnecting the electrical line, first disconnecting the air-insulated grounding switch from the electrical line and subsequently disconnecting the second interrupter unit.
Dependencies are inferred from the claim text.