Power switching apparatus

Details Power switching apparatus Power switching apparatus

1978-02-16

1981-01-27

Hartary, Joseph W.

Electrical transmission or interconnection systems

Switching systems

307 19, 307 86, H02B 124, H02J 400

Patent

active

042477875

ABSTRACT:
This invention relates to the arrangement of a switching network intended to be used within an electrical utility station switchyard, which improves the security of power delivery to various loads while at the same time allowing a reduction in the number of required circuit breakers and related gear. The invention is a switching network comprising six conducting branches, each branch containing at least one switching means such as a circuit breaker. The branches are connected at their ends so as 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 means 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 operation of a maximum of three of switching means.

REFERENCES:
patent: 1955311 (1934-04-01), Parsons

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