COMPOSITE-TYPE GAS-INSULATED SWITCHGEAR

摘要

PROBLEM TO BE SOLVED: To provide a composite-type gas-insulated switchgear advantageous in cost which makes it possible to remove troblesomeness in maintenance and reduce the area of installation when a disconnector for sectioning outgoing lines is installed in an electric power station having 1-1/2 circuit breaker configuration and annular bus configuration.

SOLUTION: An electric power station has bus configuration characterized in 1-1/2 circuit breaker method or annular bus method. A composite-type gas-blast load-break switch device 13 comprising two disconnectors 8 for circuit breaker inspection and one disconnector 10 for line sectioning is applied to the electric power station. A composite-type gas-insulated switchgear 12 comprising one circuit breaking device 9 and one disconnector 8 for circuit breaker inspection, and a single gas-insulated circuit breaker 11 are disposed in combination therewith.

COPYRIGHT: (C)2004,JPO