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Semi-automatic three-phase synchronous drop-out fuse

A drop-out fuse, three-phase synchronization technology, applied in electrical components, circuits, emergency protection devices, etc., to reduce labor intensity, improve efficiency, and ensure safety.

Inactive Publication Date: 2012-02-22
余谋幸 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the search, there is no patent application identical to the present invention in China

Method used

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  • Semi-automatic three-phase synchronous drop-out fuse
  • Semi-automatic three-phase synchronous drop-out fuse
  • Semi-automatic three-phase synchronous drop-out fuse

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Experimental program
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Embodiment Construction

[0025] The present invention will be further described by using the accompanying drawings and examples.

[0026] 1. Single-phase installation

[0027] ①The upper terminal 3.1 and the lower terminal 8.1 are respectively poured with cement on the upper and lower ends of the rod-shaped porcelain column insulator 1; The mounting plate assembly 2 and the rod-shaped porcelain post insulator 1 are assembled; the spring 3.4 and the fastener plate 3.2, the upper static contact 3.3 and the upper terminal 3.1 are fixedly connected, then the upper static contact assembly 3 and The rod-shaped ceramic column insulator 1 is assembled; the lower support 8.4 is fixedly connected with the vertical long side plate of the "├"-shaped lower connecting plate 8.2, and the angle iron inserted at the top of the "H"-shaped upper part of the lower support 8.4 The fixed end of the upper device spring is installed in the middle of the lower support 8.4, and the lower static contact 8.3 is installed. T...

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Abstract

The invention relates to a semi-automatic three-phase synchronous drop-out fuse, and relates to electric power appliances. The fuse comprises three sets of bar-shaped ceramic column insulators 1, an installation plate assembly 2, an upper static contact assembly 3, an upper movable contact assembly 4, an arc extinction pipe 5, a fuse wire 6, a lower movable contact assembly 7, a lower static contact assembly 8, a connecting rod fixed clip 9, a connecting rod push rod 10, a drop-out buckle 11, a connecting rod 12, a link bar 13 with a hand grip and a windproof wind lock 14. In the semi-automatic three-phase synchronous drop-out fuse, structures of an upper movable contact, a lower movable contact, an upper static contact and a lower static contact are improved, and the service life of the fuse wire is prolonged, so that the fuse wire is durable in use; the fuse is provided with a fuse wire box and the windproof wind lock, a push-up three-phase automatic switching-in structure is simpler, more compact, easily and quickly switched in, reasonable in design, easy to manufacture, low in cost and convenient to use, and the aims that three phases drop out synchronously when one phase is fused, and the three phases are switched in synchronously when a switch is pushed up once can be fulfilled; and the semi-automatic three-phase synchronous drop-out fuse can be widely applied to all outdoor transformers.

Description

technical field [0001] The invention relates to electric equipment, in particular to a semi-automatic three-phase synchronous drop-out fuse for outdoor transformers. Background technique [0002] The existing fuses for outdoor transformers in China are single-phase operation, and the upper contact ring hole is hung with an insulating rod. When the swing is unstable, the ears of the lower contact are hung into the lower support, so that the three phases are separated. It is difficult, time-consuming, laborious and unsafe to complete. [0003] It is unrealistic to use high-tech and high-cost technical means or equipment for large-volume and wide-area outdoor transformer fuses. [0004] The patent No. 200620098873.1 "Three-phase linkage drop-out fuse" invented by the applicant and the second-generation product patent number 200720083838.7 "Three-phase linkage drop-out fuse" invented the plug-in fuse that can be closed simultaneously in three-phase linkage The type three-phase...

Claims

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Application Information

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IPC IPC(8): H01H85/54H01H85/02
Inventor 余谋幸
Owner 余谋幸
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