Kabushiki Kaisha Toshiba

Masaki Ikuta

Kunihiko Takagi

Masazumi Shiraishi

Takao Takeshina

A lightning arrester for discharging electricity from an electrode in a container of the ground voltage level filled with electric insulation fluid when an excessive voltage is imposed on the electrode. The arrester has characteristic elements for selectively discharging electricity and an insulation tube for enclosing the characteristic elements. The insulation tube is so arranged as that part of the characteristic elements are inserted in the container and some of them project out. The characteristic elements are connected to the electrode in the container, and selectively connected and disconnected to the ground.

Lightning arrester

A metalclad switchgear has three assemblies which are separately arranged in separate housings for housing a circuit breaker, a control line and a cable, all constituting the metalclad switchgear and which can be detachably coupled. The three assemblies are a circuit interrupting device, which can be designed for standardization, and a control line compartment and a cable compartment both of which can be designed in accordance with given specifications.

Growing community of inventors

Tokyo, Japan

Masaki Ikuta