Novel drop switch for preventing line tripping fault

The utility model discloses a novel drop switch for preventing line tripping faults. When an over-current fault occurs in an existing long fusion tube type drop switch, a fuse wire is fused, pressure acting on a lower spring piece is released, the broken fuse wire pops up the fuse wire out of a fusi...

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Bibliographic Details
Main Authors BAI YU, FAN XIAOFEI, KONG JINLIANG, XIAO JING, TIAN BO, GAO GUOQING, LIU JIANFENG, WU ZHICHEN
Format Patent
LanguageChinese
English
Published 26.11.2021
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses a novel drop switch for preventing line tripping faults. When an over-current fault occurs in an existing long fusion tube type drop switch, a fuse wire is fused, pressure acting on a lower spring piece is released, the broken fuse wire pops up the fuse wire out of a fusion tube through the elastic force of the spring piece of a lower moving contact, the popped fuse wire is thrown to an iron tower or other phases, a grounding or interphase short circuit fault is caused, a 35kV current collection circuit switch trips, and the current collection circuit is damaged. The accident range is expanded. The device comprises a small insulating umbrella skirt (10), the upper end and the lower end of the small insulating umbrella skirt are respectively connected with a copper ruler (5), the copper ruler at the upper end is connected with a high-voltage fusion tube (6), a high-voltage fuse wire (7) penetrates through the high-voltage fusion tube, the two ends of the high-voltage fuse wire are r
Bibliography:Application Number: CN202121350828U