Kabushiki Kaisha Toshiba

Kazutoshi Ogata

Kozo Matsushita

Kenji Arai

Katsumi Suzuki

Hiroshi Furuta

Osamu Nakano

Yoshinori Nagafuchi

Toshiyuki Sugawara

Akihiro Yoshimi

Atsushi Abumiya

Masaru Nozawa

Shinsuke Uchino

A hybrid gas insulation switchgear apparatus comprises an enclosure in which an insulating gas is sealed, a bushing unit provided for the enclosure, a breaker unit disposed inside the enclosure, a disconnector unit disposed inside the enclosure and including disconnectors to be connected electrically in series to both sides of the breaker unit, an earth switch unit disposed inside the enclosure and including earth switches disposed between the breaker unit and the disconnectors, respectively, the earth switches being provided with main pole side electrodes disposed on the side of the breaker unit, and a current transformer unit mounted to the enclosure. The bushing unit including bushings each having a conductor connected to an electrode in the disconnector on a side opposite to the breaker.

Hybrid gas insulation switchgear apparatus

In a hybrid type gas insulation switch gear apparatus, an enclosure includes a cylindrical branched portion branched from a cylindrical body so as to be inclined obliquely upward. An insulating gas is sealed therein. Insulating enclosures are mounted to the enclosure and the cylindrical branched portion, a disconnecting switch is arranged within the enclosure and electrically connected to the bushing. A circuit breaker is arranged within the insulating enclosure and electrically connected in series to the disconnecting switch. A current transformer is arranged on the cylindrical branched portion. A connecting conductor is arranged in between the circuit breaker and the disconnecting switch and an earth switch mounted to the enclosure, and an insulating member for supporting a primary electrode and the bushing conductor on the enclosure.

Hybrid type gas insulation switch gear apparatus

Growing community of inventors

Munakata, Japan

Kazutoshi Ogata