Vacuum break switch open and closed indicator
View Patent ↗An underarm gang operated vacuum break switch (underarm switch) has an electrically live portion under a mounting arm, which provides advantages over the standard vacuum break switch, which have the electrically live portion above the mounting arm. Because the non-electrified mounting arm is above the electrified portion, the underarm switch is safer for perching birds and other wildlife. The nature of the underarm switch also provides other benefits including a disconnect blade that when opened creates a visual gap to ensure electrical discontinuity along with a safety locking arm tied to deactivating the underarm switch. Adding to the safety measures is a visual indicator that shows an electrician when the switch is live and safe to open the disconnect blade. Other safety measures include a shock absorber assembly and inertia slowing mass protecting electrical contacts within the vacuum break switch from failing.
1. A power line vacuum switch comprising:
a vacuum bottle switch that includes a fixed electrical contact and a dynamic electrical contact;
a vacuum bottle switch actuator that includes a linkage assembly,
the linkage assembly configured to drive the power line vacuum switch in an open orientation defined when the dynamic electrical contact is separated from the fixed electrical contact and in a closed orientation when the dynamic electrical contact is contacting the fixed electrical contact;
an indicator shaft extending orthogonally from the linkage assembly, the indicator shaft is rotated in a first position when in the open orientation and in a second position when in the closed orientation, the indicator shaft is rotated in the first and the second positions via the linkage assembly;
an open/close indicator attached to the indicator shaft at a shaft distal end of the indicator shaft, the open/close indicator configured to visibly show when the power line vacuum switch is in the open orientation or the closed orientation via the indicator shaft being rotated.
2. The power line vacuum switch of claim 1 , wherein the open/close indicator covers the shaft distal end of the indicator shaft.
3. The power line vacuum switch of claim 1 , wherein the open/close indicator comprises an indicia that is a first color indicating the open orientation and a second color indicating the closed orientation.
4. The power line vacuum switch of claim 3 , wherein the first color is green and the second color is red.
5. The power line vacuum switch of claim 1 further comprising an actuator housing that houses the vacuum bottle switch actuator, the indicator shaft extends outside of the actuator housing.
6. The power line vacuum switch of claim 5 , wherein the open/close indicator is cylindrically shaped with an indicator distal surface extending away from the actuator housing, an indicator proximal side facing the actuator housing and an indicator side surface between the indicator proximal side and the indicator distal surface, the open/close indicator comprises a bottom view indicia visible on the indicator distal surface that indicates when the power line vacuum switch is in the open orientation or the closed orientation.
7. The power line vacuum switch of claim 6 , wherein the indicator side surface comprises a side view indicia.
8. The power line vacuum switch of claim 6 , wherein the indicator distal surface faces downwards when the power line vacuum switch is connected to a powerline.
9. The power line vacuum switch of claim 7 , wherein the open/close indicator comprises an indicator distal surface window in the indicator distal surface through which the bottom view indicia is viewable and an indicator side surface window in the indicator side surface through which the side view indicia is viewable, the indicia are configured to rotate with the indicator shaft.
10. A vacuum switch arrangement comprising:
a fixed electrical contact and a dynamic electrical contact disposed in a vacuum bottle;
a linkage assembly, inside of a vacuum bottle switch actuator, that moves the dynamic electrical contact from an open orientation, where the dynamic electrical contact is spaced apart from the fixed electrical contact, to a closed orientation, where the dynamic electrical contact is in contact with the fixed electrical contact;
an indicator shaft connected to and extending orthogonally from the linkage assembly,
the indicator shaft configured to rotate between a first position and a second position via the linkage assembly,
the open orientation corresponds to the indicator shaft being in the first position and the closed orientation corresponds to the indicator shaft being in the closed position;
an open/close indicator attached to the indicator shaft at a shaft distal end of the indicator shaft, the open/close indicator visibly displays an open orientation indicia when the indicator shaft is in the first position and a closed orientation indicia when the indicator shaft is in the second position.
11. The vacuum switch arrangement of claim 10 , wherein the open orientation indicia is green and the closed orientation indicia is red.
12. The vacuum switch arrangement of claim 10 , wherein the open/close indicator further comprising:
an indicator housing that is defined by cylindrical side surface that extends between a housing proximal side and a housing distal side, the housing proximal side faces the vacuum bottle switch actuator,
at least one distal surface window in the housing distal side and at least one side surface window in the cylindrical side surface,
an indicator hub that fits inside of the indicator housing in a rotating relationship,
the indicator hub including at least one bottom view visual indicator that lines up with a side view visual indicator.
13. The vacuum switch arrangement of claim 12 , wherein the at least one bottom view visual indicator is viewable through the at least one distal surface window and the side view visual indicator is viewable through the at least one side surface window.
14. The vacuum switch arrangement of claim 12 , wherein the indicator hub is attached to the shaft distal end of the indicator shaft.
15. The vacuum switch arrangement of claim 12 , wherein the indicator hub is captured in the indicator housing.
16. The vacuum switch arrangement of claim 12 , wherein the housing distal side faces downwards when the power line vacuum switch is connected to a powerline.
17. A method comprising:
providing a vacuum switch arrangement having a fixed electrical contact and a dynamic electrical contact disposed in a vacuum bottle,
a linkage assembly inside of a vacuum bottle switch actuator,
an indicator shaft connected to and extending orthogonally from the linkage assembly, and
an open/close indicator attached to the indicator shaft at a shaft distal end of the indicator shaft;
moving the dynamic electrical contact from an open orientation, where the dynamic electrical contact is spaced apart from the fixed electrical contact, to a closed orientation, where the dynamic electrical contact is in contact with the fixed electrical contact;
rotating the indicator shaft between a first position and a second position via the linkage assembly, the rotating is about an axis,
the open orientation corresponds to the indicator shaft being in the first position and the closed orientation corresponds to the indicator shaft being in the closed position;
visibly displaying an open orientation indicia via the open/close indicator when the indicator shaft is in the first position; and
visibly displaying a closed orientation indicia via the open/close indicator when the indicator shaft is in the second position.
18. The method of claim 17 , wherein the indicator shaft fixedly connected to an indicator hub that is inside of an indicator housing, the indicator shaft rotating the indicator hub inside of the indicator housing between the first position and the second position, the indicator housing does not rotate, the open/close indicator comprising the indicator hub and the indicator housing.
19. The method of claim 17 , wherein the open/close indicator visibly displays the open orientation indicia and the closed orientation indicia at an indicator distal surface of the open/close indicator.
20. The method of claim 19 , wherein the open/close indicator further visibly displays the open orientation or the closed orientation via a side view visual indicator.