Low-voltage, medium-voltage or high-voltage assembly
View Patent ↗The disclosure relates to a voltage assembly having at least one short circuiting device in which a moving contact piece can be closed onto a fixed contact piece. In order to prevent breakdown at least two separated vacuum zones are arranged along a moving path of the fixed contact piece.
1. A voltage assembly comprising:
a moving contact piece;
a fixed contact piece;
at least one short-circuiting device in which the moving contact piece can be closed onto the fixed contact piece; and
at least two vacuum zones arranged in a moving path of the moving contact piece,
wherein the two vacuum zones are separated by a separating element through which the moving contact piece is moved.
2. The voltage assembly according to claim 1 , wherein the separating element is a membrane.
3. The voltage assembly according to claim 2 , wherein the membrane is made of metal, glass, ceramic or plastic.
4. The voltage assembly according to claim 1 , wherein the separating includes at least one membrane each membrane including a predetermined weak breaking line or zone.
5. The voltage assembly according to claim 1 , wherein the at least two vacuum zones are arranged serially along the moving path which establishes a high withstand voltage in the assembly.
6. The voltage assembly according to claim 1 , wherein the at least two vacuum zones are arranged in parallel along the moving path of the moving contact piece, which establishes a high ampacity in the assembly.
7. The voltage assembly according to claim 1 , wherein three vacuum zones are arranged serially along the moving path of the moving contact piece.
8. The voltage assembly according to claim 1 , wherein the moving contact is moved by a propellant charge or gas generator.
9. A switchgear comprising a voltage assembly as claimed in claim 1 .
10. An electric interconnecting system comprising a voltage assembly as claimed in claim 1 .
11. A transformer comprising a short circuit device that includes the voltage assembly as claimed in claim 1 .
12. The voltage assembly of claim 1 further comprising:
contact parts are arranged under a vacuum atmosphere within the device,
wherein the contact parts include at least one of a plug and bushing.
13. The voltage assembly according to claim 2 , wherein the separating element includes at least three membranes, and
wherein each membrane is made of a different material.
14. The voltage assembly according to claim 2 , wherein one or more vacuum zones can be connected through a bore within a plate of the membrane.
15. The voltage assembly according to claim 1 , wherein the assembly includes at least two short-circuitry devices that are arranged in parallel to cover high short-circuit current demands.
16. The voltage assembly as claimed in claim 1 , wherein the assembly includes at least two short-circuitry devices that are arranged in series to cover high voltage demands with the same device.
17. The voltage assembly according to claim 1 , wherein the assembly comprises two or more complete devices arranged in series,
wherein a first device of the two devices is at earth potential and is ignited by a current impulse and a second device of the two devices is ignited along the moving path through a mechanical ignition of a second microgas generator.