Gas pressurized high voltage switching installation

Claim 1

In a metal encapsulated, pressurized gas insulated installation for switching at least one high voltage phase and having at least one switchgear section comprising plural adjacent, gas-tight partitioned, pressure tanks accommodating the high-voltage switchgear and other current carrying parts, a current-carrying part of each pressure tank being electrically connected to at least one current-carrying part of an adjacent pressure tank, the improvement comprising: a first pressure tank containing a switch for a bus bar of the section, at least one bus bar, and conductors connecting the switch to the bus bar and for connection to a current-carrying part of an adjacent tank; a second pressure tank containing at least one power circuit breaker, at least one current transformer, at least one grounding switch, and conductors connecting the circuit breaker, the current transformer, and the grounding switch to each other and to a current-carrying part of at least one other pressure tank of the same section, the second pressure tank being elongate and horizontally disposed under the first pressure tank and the power circuit breaker being horizontally disposed therein, with the current transformer and the ground switch positioned on the extended line of the horizontal axis of the power circuit breaker; and a third pressure tank containing at least one component for the terminal side of the section, the component comprising at least one of a disconnect switch, a cable switch, an overhead line terminating element, and a grounding switch, as well as at least one conductor connecting such component to a current-carrying part of the second tank.