Gas-insulated switchgear

摘要

A gas-insulated switchgear assembly is provided that includes a housing having an interior containing insulating gas. A disconnector is disposed in the housing and includes a movable contact, as well as fixed contacts that are spaced apart and arranged linearly in a direction perpendicular to a wall of the housing. The movable contact has a colored or topographical marking and is linearly movable among a plurality of positions. The wall of the housing is provided with an inspection window that permits a person to see the colored or topographical marking in relation to the fixed contacts, thereby permitting the person to determine the position of the movable contact.

主权项

1. A gas-insulated switchgear assembly, comprising:
(a.) a housing having an interior containing insulating gas, the housing including a wall; (b.) a disconnector disposed in the interior of the housing and comprising:
a first, a second and a third fixed contacts that are spaced apart and arranged linearly in a direction perpendicular to the wall;a movable switching element having a peripheral or spatially limited marking, the switching element being linearly movable between a first position, wherein the movable switching element touches the first fixed contact and touches and is at least partially surrounded by the second fixed contact, but does not touch the third fixed contact, and a second position, wherein the movable switching element touches and is at least partially surrounded by the second fixed contact and touches the third fixed contact, but does not touch the first fixed contact; and (c.) an inspection window through which a person may view the disconnector, the inspection window being located in the wall of the housing and being positioned to: (i.) permit the person to see the peripheral or spatially limited marking in relation to the first fixed contact when the switching element is in the first position so as to permit the person to determine that the switching element is in the first position, and (ii.) permit the person to see the peripheral or spatially limited marking in relation to the second fixed contact when the switching element is in the second position so as to permit the person to determine that the switching element is in the second position.