Electrical transmission or interconnection systems – Plural load circuit systems – Plural sources of supply
Patent
1983-03-25
1984-08-21
Goldberg, E. A.
Electrical transmission or interconnection systems
Plural load circuit systems
Plural sources of supply
307112, 307113, 307 86, 361 62, H02B 124, H02J 400
Patent
active
044672209
ABSTRACT:
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.
REFERENCES:
patent: 1955311 (1934-04-01), Parsons
patent: 3291914 (1966-12-01), Bowers
patent: 4247787 (1981-01-01), Page
Electric Utility Systems and Practices by General Electric Company, 1974.
Goldberg E. A.
Jennings Derek
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