Multifunctional protection load switch fuse combined electrical apparatus and circuit structure
The invention relates to the technical field of protection of distribution transformers, and more specifically relates to a multifunctional protection load switch fuse combined electrical apparatus and a circuit structure. According to the multifunctional protection load switch fuse combined electri...
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| creator | WEI JIANRONG YIN HAOYANG WEN XUN LIU SHU'AN LIU LINGJIAO LIU XUEMIN LIANG YONGCHANG YUAN ZHICONG YAN YU ZHANG LIUBIN ZHANG WENBING LU DIYONG LU JIA'EN XIE SHUHE LI FEIWEI YANG YUEQUN |
| description | The invention relates to the technical field of protection of distribution transformers, and more specifically relates to a multifunctional protection load switch fuse combined electrical apparatus and a circuit structure. According to the multifunctional protection load switch fuse combined electrical apparatus, a comprehensive relay protection device, current transformers, and a zero-sequence current transformer are additionally provided based on the conventional load switch fuse combined electrical apparatus; during normal operation of a load, the comprehensive relay protection device doesnot operate; during an abnormal condition, the comprehensive relay protection device realizes definite-time overcurrent, quick-break, zero-sequence, temperature and gas protection and voltage monitoring multifunctional protection of a wire-outlet cabinet; and during a short-circuit fault, the current of a circuit is suddenly increased by multiple times, a fuse is rapidly fused, the short-circuit fault is removed, and the |
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| subjects | CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION |
| title | Multifunctional protection load switch fuse combined electrical apparatus and circuit structure |
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