Kabushiki Kaisha Toshiba

Toshiyuki Saida

Minoru Saito

Takashi Nakajima

Shiro Maruyama

Masao Takahashi

Yoshito Sameda

Noriyoshi Suga

Shin Hasegawa

Tatsuji Tanaka

Setsuo Tamura

Masayuki Kosakada

Hachidai Ito

Hiroyuki Hayata

Yuuji Minami

Hiromi Nagasaki

Koichi Hamamatsu

Tokuo Ito

A partial discharge monitoring system includes: electromagnetic wave detection sensors disposed in insulating gas enclosures being objects to be monitored, converting devices, and an interface device. The interface device includes: a detecting part detecting a zero cross point of a voltage signal synchronous with a voltage signal applied to conductors disposed in the insulating gas enclosures, and deciding a sampling timing of signals of electromagnetic waves; a transmitting part notifying the sampling timing decided by the detecting part to the converting devices; an integrating part integrating digital data which are received from the converting devices on per converting device basis; and a transmitting part transmitting the integrated digital data to a monitoring device.

Partial discharge monitoring system and partial discharge monitoring method

The present invention relates to a system for protecting and controlling main-circuit components of an electricity transmission substation. The system includes devices for digital data output, protection-and-controlling, component controlling-and-monitoring, and communication. The digital data output devices input analogue AC electric values and output digital data. The protection-and-controlling devices input the data from the digital data output devices, and further control, monitor, and protect the substation main-circuit components. The component controlling-and-monitoring devices receive commands from the protection-and-controlling devices or from the substation controlling-and-monitoring equipment, and further control and monitor the substation main-circuit components. The devices for digital data output, the protection-and-controlling, and component controlling-and-monitoring are disposed near or within their corresponding substation main-circuit components.

System for protecting and controlling substation main circuit components

Growing community of inventors

Nerima, Japan

Toshiyuki Saida