Kabushiki Kaisha Toshiba

Masafumi Takei

Masayuki Sato

Daisuke Hirata

Toshiyuki Nakano

Kenichi Nojima

Hideyasu Ando

Masahiro Hanai

Yoshihiko Hirano

Hidehito Matsuzaki

Hisashi Kusumori

Motoharu Shiiki

There are provided a coating material for electrical equipment, a method for manufacturing a coating material for electrical equipment, and a closed insulating device, capable of suppressing floating and moving around of foreign substances in electrical equipment. A coating material for electrical equipmentin an embodiment includes: a matrix resincomposed of an epoxy resin; a first fillerdispersedly contained in the matrix resinand composed of whiskers having a semiconductive specific volume resistivity; a second fillerdispersedly contained in the matrix resinand composed of particles having a semiconductive specific volume resistivity; and a third fillerdispersedly contained in the matrix resinand composed of a planar, fibrous, or lamellar substance having insulating properties.

Coating material for electrical equipment, method for manufacturing coating material for electrical equipment, and closed insulating device

A nonlinear resistive coating materialin an embodiment includes: a matrix resinmade of an epoxy resin which is cured by adding a curing agent thereto; ZnO-containing particlesdispersedly contained in the matrix resinand made of a sintered compact containing ZnO as a main component; and semiconductive surface-treated whiskersdispersedly contained in the matrix resinand made of ZnO subjected to titanate coupling surface modification treatment.

Nonlinear resistive coating material, bus, and stator coil

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Yokohama, Japan

Masafumi Takei