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Current short-circuit wire with lockable plugs

A short-circuit and current technology, applied in circuits, connections, electrical components, etc., can solve the problems of time-consuming and long screws, short-circuiting of protective screen terminal blocks, etc., to achieve the effect of fast use, reliable connection, and improved short-circuit speed.

Inactive Publication Date: 2013-10-16
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the current secondary circuit terminal blocks of relay protection devices all use Phoenix terminals. When short-circuiting the current secondary circuit, the existing equipment cannot be short-circuited at the terminal block of the protective screen when the equipment is running, and can only be used outdoors. Short circuit at the terminal box in the high voltage equipment area
According to statistics, the average time for shorting the secondary circuit of the current is 12.5 minutes per group, which takes a long time and there is a hidden danger of the current circuit being open due to insufficient screw tightening

Method used

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  • Current short-circuit wire with lockable plugs
  • Current short-circuit wire with lockable plugs
  • Current short-circuit wire with lockable plugs

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0010] The specific embodiment: the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

Embodiment

[0011] Embodiment: a kind of plug lockable current short wiring (see figure 1 , figure 2 ), which includes four current short wiring units, each current short wiring unit includes a screw rod 2, the screw rod 2 is externally threaded to connect to the jacket 1, the front end of the jacket 1 is connected to the lockable plug 3, and the lockable plug 3 is symmetrically provided with grooves 6 , One end of the screw rod 2 is inserted into the lockable plug 3, and the screw rod 2 is tightened to expand the lockable plug 3. The outer cover 1 is connected with the handle 4, and the handle 4 is provided with a short-circuit wire 5. For external insulation, a rubber is provided outside the jacket 1 , a rubber is provided outside the handle 4 , and a rubber is provided outside the nut end of the screw rod 2 .

[0012] When in use, insert the lockable plug 3 of the plug-lockable current short wiring into the current secondary circuit terminal, tighten the screw, the lockable plug exp...

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PUM

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Abstract

The invention discloses a current short-circuit wire with lockable plugs. The current short -circuit wire is characterized by comprising four current short-circuit wire units, wherein each current short-circuit wire unit comprises a screw rod (2); the screw rod (2) is connected with a jacket (1) through the external thread; a lockable plug (3) is connected to the front end of the jacket (1), and grooves (6) are symmetrically formed in the lockable plug (3); one end of the screw rod (2) can be inserted into the lockable plug (3); a handle (4) is connected below the jacket (1); and a short-circuit conducting wire (5) is arranged in the handle (4). The current short-circuit wire with the lockable plugs is simply and quickly used, the short-circuit speed of a current secondary circuit is obviously improved, the construction progress is accelerated, the working time is shortened, and the safety of electric equipment and workers is improved.

Description

Technical field: [0001] The invention relates to a plug-lockable current short connection, which belongs to the technical field of power system substation maintenance. Background technique: [0002] In relay protection work, it is often necessary to short-circuit the secondary circuit of the current transformer. If the short-circuiting method is improper, it may cause the secondary circuit of the current transformer to open, generate high voltage and burn the equipment or even endanger personal safety. Therefore, the current transformer The quality of secondary circuit short circuit is of great significance to electrical equipment and personal safety. [0003] At present, the current secondary circuit terminal blocks of relay protection devices all use Phoenix terminals. When short-circuiting the current secondary circuit, the existing equipment cannot be short-circuited at the terminal block of the protective screen when the equipment is running, and can only be used outdoo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R31/08
Inventor 秦会昌丛志鹏王洪光王军波田书然王震宁范晨飞孔淑冰
Owner STATE GRID CORP OF CHINA