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Bridge type current switching device and current switching method using same

A current switching and bridge technology, which is applied in the field of power system, can solve the problems of secondary open circuit of current transformers, threats to the safety of operators and equipment, etc., and achieve the effect of fast operation speed, reasonable and intuitive terminal position, and low operation difficulty

Inactive Publication Date: 2012-10-10
国网黑龙江省电力有限公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing current switching device switches the current connecting pieces, it needs tools to open, which easily causes the secondary open circuit of the current transformer and threatens the safety of the operator and equipment, thus proposing a bridge type current switching device and The device current switching method

Method used

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  • Bridge type current switching device and current switching method using same
  • Bridge type current switching device and current switching method using same
  • Bridge type current switching device and current switching method using same

Examples

Experimental program
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specific Embodiment approach 1

[0023] Specific implementation mode 1. Combination figure 1 Describe this embodiment in detail, the bridge type current switching device described in this embodiment, it comprises U-shaped connecting bridge 1, socket 2, the current transformer secondary side coil winding 3 of transformer, overvoltage short-circuit protection device 4 and transformer's Bypass current transformer secondary side winding 5,

[0024] The socket 2 includes 6 groups of jacks,

[0025] The terminals of the first group of jacks of the socket 2 are connected to one end of the secondary side coil winding 3 of the current transformer of the transformer,

[0026] The other end of the secondary side coil winding 3 of the current transformer of the transformer is connected to the terminals of the second group of jacks;

[0027] One end of the terminal of the third group of jacks of the socket 2 is connected to a current input end of the overvoltage short-circuit protection device 4, and the other end of th...

specific Embodiment approach 2

[0034] Specific embodiment two, combine figure 2 Describe this embodiment in detail. The difference between this embodiment and the bridge-type current switching device described in Embodiment 1 is that the plug of the U-shaped connecting bridge 1 is in the shape of a cylinder, and the inside is a ring-shaped elastic metal sheet.

specific Embodiment approach 3

[0035] Specific embodiment three, combine image 3 Describe this embodiment in detail. The difference between this embodiment and the bridge-type current switching device described in Embodiment 2 is that the jack of the socket 2 is adapted to the cylindrical shape of the U-shaped connecting bridge 1, and the inside of the jack is ring-shaped. Elastic metal sheet, the bottom surface of each pair of jacks is fixed on an insulating board. There are 4 jacks in each group, and the terminals of each group of jacks are connected in series. Arranged in a rectangle, and the jacks of the even group and the jacks of the odd group are arranged in a parallelogram.

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Abstract

The invention provides a bridge type current switching device and a current switching method using the same, relates to the field of electric power, and solves the problems that when the existing current switching device switches current to connect a piece, the existing current switching device can be opened by a tool, so that a current transformer is easily opened for the second time, and the safety of operating personnel and equipment is threatened and the like. The switching method using the bridge type current switching device comprises the following steps of: step 1, plugging out a U-shaped connecting bridge for connecting a first group of jacks and a third group of the jacks, and connecting the third group of the jacks and a fifth group of the jacks through the U-shaped connecting bridge; and step 2, plugging out a U-shaped connecting bridge for connecting a second group of the jacks and a fourth group of the jacks, and connecting the fourth group of the jacks and a sixth group of the jacks through the U-shaped connecting bridge.. The bridge type current switching device and the current switching method using the same disclosed by the invention are applicable to the field of an electric power system.

Description

technical field [0001] The invention relates to the field of power systems. Background technique [0002] At present, the line microcomputer protection secondary current switching device commonly used in the power system is an internal and external layered structure, which is connected by a knob and a metal sheet. Due to the compact structure of the device itself, the gap between each phase is small and the knob structure is adopted, when the switching current is connected When opening the outer layer, it is difficult to fully extend the hand to the inner layer to open the connection. Sometimes it is necessary to use tools to open it. If there is a poor contact during the switching process, it will cause a secondary open circuit of the current transformer, which is a serious threat. Operator and equipment safety issues. Contents of the invention [0003] In order to solve the problem that the existing current switching device switches the current connecting pieces, it nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/04H01H1/56
Inventor 宫战国梁长胜刘健
Owner 国网黑龙江省电力有限公司超高压公司