Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

Yuichiro Gunji

Shinya Nakayama

Manabu Watanabe

Fumio Sato

Akihiro Matsuzaki

Hitoshi Katayama

Fujio Terai

Norio Takahashi

Masafumi Fujita

Hideyuki Nakamura

Yasuo Kabata

Koji Ando

Kazuyuki Sasaki

Toshio Hirano

Ken Nagakura

Hiroaki Koinuma

Kazuki Sato

Toru Kikuchi

Masashi Kobayashi

Hirotada Endo

Shunsuke Ishizaki

Masahiro Seki

Kento Arai

Kiyoshi Miyaike

According to an embodiment, a field winding interlayer short-circuit monitoring device comprises: an input unit configured to obtain field winding current values and field winding voltage values at a predetermined sampling cycle; a memory configured to store field winding resistance versus current characteristic curves at an abnormal state and a normal state; and a field winding resistance calculator configured to calculate a field winding resistance value by dividing the field winding voltage value by the field winding current; an average value calculator configured to calculate an average resistance value and an average current value by averaging those obtained during a predetermined time interval; and an image data generator configured to generate image data to display a predetermined number of average value data along with the field winding resistance versus current characteristic curves at the normal state and the abnormal state.

Field winding interlayer short-circuit monitoring device and field winding interlayer short-circuit monitoring method

According to one embodiment, a stator includes spacing strips disposed to be interposed in the electromagnetic steel plates for each predetermined set of plates of the electromagnetic steel plates, each of the spacing strips extending in a radial direction of the stator iron core to form ventilation ducts, a spacing strip attachment plate which is disposed between the spacing strips and the set of plates of the electromagnetic steel plates to fix the spacing strips, and an insulating layer which covers the entirety of the spacing strip attachment plate and the spacing strips fixed to the spacing strip attachment plate.

Stator of rotating electrical machine and method of manufacturing stator of rotating electrical machine

According to an embodiment, an inspection device comprises a moving body that includes; a moving main body which moves in contact with a first structure; arms attached to the moving main body; an arm driver to drive the arms; and a detector attached to the moving main body or the arms to inspect the second structure. The arms each can selectively take a pressed position and a detached position. When the moving body is moved, at least one of the arms are in the pressed position and pressed to the second structure, and the moving body is supported by the first and second structures.

Inspection device and inspection method

According to an embodiment, an inspection system comprises: a moving body including a moving main body movable along a structure; a detector attached to the moving main body; a shape information storage unit for storing shape information indicating shape and size of the structure; an inspection location information storage unit for storing information of inspection locations to be inspected; an inspection item information storage unit for storing information of inspection items to be inspected; a moving body location detecting unit for detecting moving body location information indicating location of the moving body; a moving control unit for controlling movement of the moving body; and an inspection control unit for inspection.

Inspection system and inspection method

A method of measuring a three-dimensional shape of a connection assembly of a stator coil in a turbine generator, includes first measuring a three-dimensional shape of a measurement area of the connection assembly of the stator coil in a measurement range set in advance by a laser non-contact three-dimensional shape measurement device, second measuring a three-dimensional shape of a measurement area of the connection assembly of the stator coil in a measurement range set in advance by a multi-joint contact three-dimensional shape measurement device, the multi-joint contact three-dimensional shape measurement device including a plurality of arms being coupled via a joint including a built-in encoder, and integrally synthesizing the three-dimensional shape data measured in the first measurement, the three-dimensional shape data measured in the second measurement, and shape measurement data of a local area measured manually, thereby drafting a plan of the stator connection assembly.

Method and jig for device for measuring three-dimensional shape of connection assembly of stator coil in turbine generator

Growing community of inventors

Yokohama, Japan

Yuichiro Gunji