Device, system, and method for high voltage switch
Devices, systems, and methods are provided for a high voltage switch. The device can include a first housing, a switch, and a polymer insulating material. The housing can be at ground potential. The switch can be located within the housing and can include a current-breaking component and a moving contact. The current-breaking component can include a fixed contact and an opening contact. The fixed contact can be coupled to a first power lead. The opening contact can be configured to receive a moving contact. The moving contact can be coupled to a second power lead and can be controlled by an actuating mechanism. The polymer insulating material can surround the switch within the housing.
1 . A device comprising:
a first housing, wherein the first housing is at ground potential;
a switch, wherein the switch is located within the first housing and comprises:
a current-breaking component with a fixed contact and an opening contact, wherein the fixed contact is coupled to a first power lead and wherein the opening contact is configured to receive a moving contact, and
the moving contact, wherein the moving contact is coupled to a second power lead and is controlled by an actuating mechanism;
a polymer insulating material, wherein the polymer insulating material surrounds the switch within the first housing;
a grounded shield, wherein the grounded shield surrounds at least the current-breaking component; and
an air gap between the polymer insulating material and the grounded shield, wherein the polymer insulating material is coupled to an outer surface of the current-breaking component.
2 . The device of claim 1 , wherein the current-breaking component comprises a vacuum interrupter controlled by the actuating mechanism.
3 . The device of claim 1 , further comprising:
a high voltage dielectric shield surrounding the fixed contact and opening contact of the current-breaking component.
4 . The device of claim 1 , wherein the polymer insulating material is void free.
5 . The device of claim 1 , wherein the polymer insulating material comprises liquid silicone rubber.
6 . The device of claim 1 , wherein the air gap comprises an atmospheric pressure air gap.
7 . The device of claim 1 , wherein the switch comprises a circuit breaker configured to protect electrical equipment from overcurrent.
8 . A system comprising:
a first housing, wherein the first housing is at ground potential;
a first bushing coupled to a first power lead;
a second bushing coupled to a second power lead;
a switch, wherein the switch is located within the first housing and comprises:
a current-breaking component with a fixed contact and an opening contact, wherein the fixed contact is coupled to the first power lead through the first bushing, and wherein the opening contact is configured to receive a moving contact, and
the moving contact, wherein the moving contact is coupled to a second power lead through the second bushing and is controlled by an actuating mechanism;
a polymer insulating material, wherein the polymer insulating material surrounds the switch and the moving contact within the first housing;
a grounded shield, wherein the grounded shield surrounds at least the current-breaking component; and
an air gap between the polymer insulating material and the grounded shield, wherein the polymer insulating material is coupled to an outer surface of the current-breaking component.
9 . The system of claim 8 , wherein the second bushing comprises a second housing at ground potential.
10 . The system of claim 9 , wherein the second housing comprises a polymer insulating material connected to inner walls of the second housing.
11 . The system of claim 10 , wherein the second bushing comprises a flange configured to separate the second housing from the first housing.
12 . The system of claim 11 , wherein the second bushing comprises a polymer insulating connecting point configured to insulate a connection between the second housing and the first housing.
13 . The system of claim 8 , wherein the current-breaking component comprises a vacuum interrupter controlled by the actuating mechanism.
14 . The system of claim 8 , further comprising:
a high voltage dielectric shield surrounding the fixed contact and opening contact of the current-breaking component.
15 . The system of claim 8 , wherein the polymer insulating material comprises liquid silicone rubber.
16 . The system of claim 8 , wherein the first and second housing comprise the polymer insulating material.
17 . A method, comprising:
providing a high voltage electrical current through a grounded housing, wherein the grounded housing comprises:
a first and second power lead coupled to a power supply,
a switch comprising:
a current-breaking component with a fixed contact and an opening contact, wherein the fixed contact is coupled to the first power lead and wherein the opening contact is configured to receive a moving contact, and
the moving contact, wherein the moving contact is coupled to the second power lead and is controlled by an actuating mechanism,
a polymer insulating material, wherein the polymer insulating material surrounds the switch and the moving contact within the housing;
a grounded shield, wherein the grounded shield surrounds at least the current-breaking component; and
an air gap between the polymer insulating material and the grounded shield, wherein the polymer insulating material is coupled to an outer surface of the current-breaking component
determining an overcurrent occurs between the first and second power lead; and
switching off the high voltage electrical current using the switch.
18 . The method of claim 17 , wherein the current-breaking component comprises a vacuum interrupter controlled by the actuating mechanism and wherein the polymer insulating material comprises liquid silicone rubber.