Disconnector switch for voltage transformer
A disconnector unit for a medium voltage application, with a conductive pen inside a housing. The conductive pen is moveable between an operational position in which an electrical contact is provided between a first terminal and a second terminal positioned inside the housing, and an off position in which no electrical contact is present between the first terminal and the second terminal. The conductive pen includes a first actuating part inside the housing, optionally, in the form of a magnet. The disconnector unit further includes a second actuating part positioned outside the housing, wherein the first actuating part and second actuating part form a non-mechanical link.
1. A disconnector unit for a medium voltage application, the disconnector unit comprising:
a conductive pen disposed inside a housing; and
a second actuating art having a second magnet disposed outside the housing,
wherein the conductive pen is moveable between an operational position in which an electrical contact is provided between a first terminal and a second terminal disposed inside the housing, and an off position in which no electrical contact is present between the first terminal and the second terminal,
wherein the conductive pen comprises a first actuating part having a first magnet, and
wherein the first actuating part and second actuating part form a non-mechanical link by the first and second magnets being disposed at corresponding locations on opposite sides of a wall of the housing such that the magnets slide together along the respective opposite sides of the wall of the housing.
2. The disconnector unit of claim 1 , wherein the second magnet is an electromagnet.
3. The. disconnector unit of claim 1 , wherein the conductive pen is pivotably mounted to the first or second terminal.
4. The disconnector unit of claim 1 , wherein the conductive pen has two stable positions.
5. The disconnector unit of claim 1 , wherein the conductive pen has one stable position.
6. The disconnector unit of claim 1 , wherein the housing comprises two symmetrical halves.
7. The disconnector unit of claim 1 , wherein the housing comprises a cylindrical part and a closing lid.
8. The disconnector unit of claim 1 , wherein the disconnector unit further comprises a position sensor disposed outside of the housing.