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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3. Отображено 3.
09-05-2023 дата публикации

Method, device and equipment for evaluating service life of oil paper of current transformer and medium

Номер: CN116087723A
Автор: ZHOU GUOWEI, YANG JIE, YANG SONGWEI, ZOU HUI, XING JIALEI, CHEN XIN, SUN LINTAO, PENG CHENGUANG, WANG QUANHU
Принадлежит:

The invention discloses a current transformer oil paper service life evaluation method and device, equipment and a medium. The method comprises the steps of obtaining to-be-detected current transformer oil paper, determining equivalent aging time, test temperature and test harmonic frequency of the current transformer oil paper, and inputting the equivalent aging time, the test temperature and the test harmonic frequency into a pre-trained service life evaluation model to obtain target breakdown field strength, and evaluating the service life of the oil paper of the current transformer according to the target breakdown field intensity. The insulation performance of the current transformer oil paper can be determined by determining the target breakdown field strength through the pre-trained life evaluation model, and meanwhile, if the target breakdown field strength is equal to a preset value, the equivalent aging time corresponding to the target breakdown field strength can be used as the ...

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Номер записи: 1
14-04-2023 дата публикации

Transformer mechanical instability fault diagnosis method and device and electronic equipment

Номер: CN115963348A
Автор: ZHENG HONG, BAO MEIJUN, YANG JIE, ZHOU GUOWEI, ZHOU JIANPING, LI MENG, WU QIUHAO, LU YANHONG, ZOU HUI, XING JIALEI
Принадлежит:

The invention relates to the technical field of fault diagnosis, in particular to a transformer mechanical instability fault diagnosis method and device and electronic equipment, and the method comprises the steps: collecting a voiceprint vibration signal of a transformer, carrying out the preprocessing of the voiceprint vibration signal, then calculating the average complexity of the voiceprint vibration signal, and carrying out the calculation of the average complexity of the voiceprint vibration signal; and performing normalization processing on the average complexity of the voiceprint vibration signals to obtain relative complexity of the voiceprint vibration signals, and determining the mechanical instability fault of the transformer based on the relative complexity of the voiceprint vibration signals. According to the invention, the overall mechanical stability monitoring of each winding of the transformer is realized, and the overall coverage range and performance of the transformer ...

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Номер записи: 2
11-08-2023 дата публикации

Voltage measuring method and related device

Номер: CN116577542A
Автор: ZHOU GUOWEI, YANG JIE, YANG SONGWEI, ZOU HUI, XING JIALEI, CHEN XIN, SUN LINTAO, PENG CHENGUANG, WANG QUANHU, ZHOU JIANPING
Принадлежит:

According to the technical scheme, when voltage measurement is carried out, the measurement demand parameters corresponding to the to-be-measured equipment can be obtained firstly, the measurement demand parameters are used for reflecting the voltage measurement demand corresponding to the to-be-measured equipment, and therefore voltage measurement can be carried out in a targeted mode according to the actual voltage measurement demand of the to-be-measured equipment. According to the measurement demand parameter, the Rogowski coil design parameter can be determined, then the Rogowski coil is generated according to the Rogowski coil design parameter, and because the Rogowski coil is actually matched with the measurement demand parameter, the voltage measurement can be carried out on the to-be-measured equipment more accurately through the Rogowski coil. The voltage parameter corresponding to the to-be-measured device is measured through the Rogowski coil, the accurate voltage parameter ...

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Номер записи: 3