Kabushiki Kaisha Toshiba

Toshiba Mitsubishi-Electric Industrial Systems Corporation

Cygames, Inc.

Toshiba Energy Systems & Solutions Corporation

Toshiba Industrial Products and Systems Corporation

Toshiba Energy Systems & Solutions Coporation

Satoshi Hiroshima

Tetsuo Yoshimitsu

Takayuki Sakurai

Tatsuya Hirose

Hiroyuki Ogawa

Akira Fujimoto

Takashi Harakawa

Makoto Takanezawa

Yuji Yamamoto

Shuichi Obayashi

Tetsu Shijo

Akiko Yamada

Tetsushi Okamoto

Masahiro Sakai

Kazunori Shioda

Keita Ueda

Kunihiko Matsuda

Masayuki Hikita

Masahiro Kozako

Takahisa Ueno

Tomomi Ikegami

Kodai Wada

Keisuke Kumagai

A partial discharge measurement system including at least one sensor configured to detect a voltage signal propagating through a conductor connected to a rotating electrical machine in a non-contact manner, a first bandpass filter configured to pass a component of a first frequency included in the voltage signal therethrough, a second bandpass filter configured to pass a component of a second frequency included in the voltage signal therethrough, the second frequency being lower than the first frequency, a phase acquirer configured to acquire a phase waveform of the component of the second frequency having passed through the second bandpass filter, and an output interface configured to output information by which a component of partial discharge of the rotating electrical machine included in the component of the first frequency having passed through the first bandpass filter can be identified based on the phase waveform.

Partial discharge measurement system that includes a first bandpass filter and a second bandpass filter and partial discharge measurement method

An information processing system comprises a player terminal and a server, wherein the player terminal is configured to execute: transmission processing for transmitting action identification information corresponding to a selected action to the server on the basis of an input of a selecting operation for selecting one of a plurality of actions, the server is configured to execute: update processing for updating a parameter at least on the basis of the received action identification information; and setting rendering information at least on the basis of the received action identification information, the player terminal is further configured to execute: displaying an action image on a display on the basis of the received rendering information; and setting a terminal-side wait period on the basis of an input of a specific operation, and the player terminal does not execute the transmission processing during the terminal-side wait period.

Information processing system and information processing method

According to one embodiment, an insulation diagnostic system comprising: a peak-value acquisition circuit configured to acquire at least one peak value of a section corresponding to local discharge of a voltage signal acquired by at least one sensor that detects the voltage signal in a non-contact manner; a function acquisition circuit configured to acquire a calculation function for calculating charge amount related to the discharge based on at least two peak values acquired from the voltage signal that is detected by the sensor by applying a test voltage to a rotating electrical machine while the rotating electrical machine is stopped; and a charge-amount calculation circuit configured to calculate the charge amount related to partial discharge of the rotating electrical machine based on the calculation function and the peak value obtained from the voltage signal that is detected by the sensor during operation of the rotating electrical machine.

Insulation diagnostic system and insulation diagnostic method

A game serverincludes: a processing unitthat deletes an item obtained by a user and increases the value of a parameter on the basis of an experience value of the deleted item when a condition preset by the user is satisfied; an item boxthat stores the item obtained by the user when the condition is not satisfied; and a present boxthat stores the item obtained by the user when the condition is not satisfied and the number of items stored in the item boxhas reached an upper-limit value.

Game program, game server, game system, and game device

A partial discharge measurement device includes: an impulse voltage application unit; a measurement control unit; and first and second partial discharge detection unit. The measurement control unit includes: a first and a second detector level partial discharge counting unit; and a partial discharge resistance evaluation unit. Each of the first and the second detector level partial discharge counting units outputs a first or second detection signal when the first or second detection signal exceeds a predetermined specified value. The partial discharge resistance evaluation unit counts the number of occurrences of partial discharge based on an output from the first and second detector level partial discharge counting unit, and regards the impulse voltage value at which the count value has reached a predetermined value as a partial discharge inception voltage under the repeated impulse voltage application.

Partial discharge measurement device

According to an embodiment, there is an inductor, including: a magnetic core; a winding formed around the magnetic core; a first resin provided between turns of the winding; and a second resin covering the winding and the first resin, wherein the second resin has higher filler content than the first resin.

Inductor and method of manufacturing the same

An impulse voltage generator uses a predetermined rectangular waveform signal and a high voltage to generate an impulse voltage. The high voltage is obtained by boosting an instruction voltage of the rectangular waveform signal on a per-cycle basis. A partial discharge frequency calculation section receives detection signals based on partial discharges occurring in an object to be measured by the application of the impulse voltage and counts the detection signal on a per-cycle basis as a partial discharge frequency. An application voltage signal observation circuit observes an application voltage signal indicating the impulse voltage applied to the object to be measured. In a first cycle in which the partial discharge frequency reaches a specified frequency or more, a voltage value acquiring section sets, as a partial discharge starting voltage, the peak value of the voltage indicated by the application voltage signal output from the application voltage signal observation circuit.

Partial discharge measurement system and partial discharge measurement method by repeated impulse voltage

A signal generator generates a combined signal that is generated only in the period where supply of a pulse signal is effected, a pulse signal whose frequency is of a higher impulse repetition frequency than the frequency of the period setting signal and whose amplitude represents a voltage value that is lower than the high voltage HVDC value. A semiconductor switch accumulates electric charge on a capacitative element by means of the high voltage HVDC from the high voltage generator when the voltage value of the combined signal is lower than the set gate voltage value and generates an impulse voltage whose peak value is the value of the high voltage HVDC, by means of the electric charge that is discharged from the capacitative element when the voltage value of the combined signal exceeds the set gate voltage value.

Impulse voltage generation device

Growing community of inventors

Kawasaki, Japan

Satoshi Hiroshima