초록 ▼

A switching device that relates to the arrangement of a switching network for use within an electrical power distribution system. There is an improved security of power delivery to various loads while at the same time enabling a reduction in the number of required circuit breakers and related gear.

A switching device that relates to the arrangement of a switching network for use within an electrical power distribution system. There is an improved security of power delivery to various loads while at the same time enabling a reduction in the number of required circuit breakers and related gear. This network also presents additional options in design and operating modes, when applied to distribution systems. These options result in a reduction in the total installed capacity of the sources together with reduced continuous current and fault current ratings of conductors and interconnected apparatus. The invention provides a switching network has six conducting branches, each branch containing at least one switching means such as a circuit breaker. The branches are connected at their ends to form four 3-sided rings, each branch forming a side of and being shared by two of the rings. As a result, four triple-connected nodes are formed at the end connection points of the branches while the connections between adjacent pairs of switching device within a branch form double-connected nodes. These nodes serve as points for connection thereto of source/load elements, and each node is isolatable from the other nodes by the opening of a maximum of three of the switching device.

대표청구항 ▼

A distributed switching network comprising a plurality of remotely located sources/loads, six conducting branches extending between said remotely located sources/loads, each of said branches of said switching network comprising means for conducting direct current, single phase alternating current or

A distributed switching network comprising a plurality of remotely located sources/loads, six conducting branches extending between said remotely located sources/loads, each of said branches of said switching network comprising means for conducting direct current, single phase alternating current or polyphase alternating current as required by the application thereof, each of said branches containing at least one switching means, said branches being connected at their ends to form four 3-sided rings, each of said branches forming one side of and being shared by two of the said rings, whereby four triple-connected nodes are formed at the end connction points of the said branches, each of said nodes enabling a connection of one of said remote sources/loads and each of said nodes being isolatable from all of the other said nodes by an opening of a maximum of three of said switching means, including an additional switching means in at least one of the said branches to provide a double-connected source/load connection point or a node between the said additional switching means and said one switching means in said one branch, the said double-connected point being isolatable from the remainder of said network by an opening of the said additional switching means and said one switching means in said one branch.