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Drop-out fuse and DC high voltage test delivery test system

A drop-out fuse and blocker technology, which is applied in the field of power transmission and transformation, can solve problems such as unfavorable installation, cumbersome installation, and multi-wiring space

Active Publication Date: 2022-05-20
ZHUHAI LIANDIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PT blockers and dropout fuses are usually independent devices, which are cumbersome to install, and the series connection of the two will take up more wiring space, which is not conducive to installation

Method used

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  • Drop-out fuse and DC high voltage test delivery test system
  • Drop-out fuse and DC high voltage test delivery test system
  • Drop-out fuse and DC high voltage test delivery test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Examples of dropout fuses:

[0033] Such as figure 1 with figure 2 As shown, in this embodiment, the dropout fuse includes a housing 1, a moving contact 2, a static contact (not shown) and a conductive connector 3, and the moving contact 2 and the static contact are respectively arranged in the housing 1 both ends. The housing 1 includes a first housing 11 and a second housing 12, the movable contact 2 is installed on the first end of the first housing 11, and the second end of the first housing 11 is connected to the first end of the second housing 12. end connection, and the static contact is mounted on the second end of the second housing 12 . The second end of the first housing 11 is connected to the first end of the second housing 12 through the conductive connecting piece 3 . The moving contact 2, the static contact and the conductive connector 3 are made of conductive metal, such as copper and aluminum.

[0034] In this embodiment, the second end of the sec...

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PUM

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Abstract

The present invention provides a drop-out fuse and a DC high-voltage test delivery test system. The drop-out fuse includes a housing, a moving contact and a static contact, and the moving contact and the static contact are respectively arranged at two ends of the housing; The housing includes a first housing and a second housing, the movable contact is installed at the first end of the first housing, the second end of the first housing is connected with the first end of the second housing, and the static contact is installed At the second end of the second shell; a PT blocker is installed inside the first shell, a fuse is installed inside the second shell, the input end of the PT blocker is electrically connected with the moving contact, and the PT blocker The output end of the fuse is electrically connected to the first end of the fuse, and the second end of the fuse is connected to the static contact. The drop-out fuse is used in the DC high-voltage test delivery test system. The drop-out fuse of the present invention can reduce the occupation of wiring space and is convenient for installation.

Description

technical field [0001] The present invention relates to the technical field of power transmission and transformation, in particular to a drop-out fuse, and also to a DC high-voltage test delivery test system using the drop-out fuse. Background technique [0002] In the existing DC high-voltage test delivery test system, the primary side of the voltage transformer is connected to the main line in three phases, and the neutral point is directly shorted to the ground. When fault detection is carried out on power lines through DC test transmission (such as insulation shaking meter, DC test transmission instrument, etc., referred to as DC instrument, the same below), the on-line voltage transformer is grounded due to its neutral point, and its inductance characteristics Short the test DC voltage directly to the ground, so that the DC instrument cannot be boosted normally for detection. The traditional method is to disconnect the voltage transformer before testing, then try to se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H85/02H01H85/041H01H85/143H01H85/175G01R31/00
CPCH01H85/0241H01H85/041H01H85/143H01H85/175G01R31/00Y02E60/60
Inventor 方道奎杨琦琛
Owner ZHUHAI LIANDIAN TECH CO LTD