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Temporary backup protection instrument for line protection and defect elimination of 35kV and below

A line protection and protector technology, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as long power outages, and achieve the effects of high operational reliability, simple circuit design, and shortening of power outages.

Inactive Publication Date: 2019-11-22
STATE GRID HEBEI ELECTRIC POWER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analyzed the defect types of professional line protection equipment for relay protection last year, classified and summarized according to the protection device body, secondary circuit and auxiliary equipment, protection channel interface equipment, channel processing equipment, etc., and found that the defect of the line protection device body is the power failure The main crux of the long time

Method used

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  • Temporary backup protection instrument for line protection and defect elimination of 35kV and below
  • Temporary backup protection instrument for line protection and defect elimination of 35kV and below
  • Temporary backup protection instrument for line protection and defect elimination of 35kV and below

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] as attached Figure 1-3 shown;

[0039]A temporary backup protector for line protection of 35kV and below, including a protector box 10, a WXH-822A line protection device installed in the protector box 10, and a fixed panel fixedly installed on the protector box 10 And indicating elements, interface elements and operating elements respectively arranged on the fixed panel;

[0040] The indicating element, the interface element and the operating element are all electrically connected to the WXH-822A line protection device.

[0041] Further, the indicating element includes a trip indicator light 13 used to indicate that the line is in a trip state and a closing indicator light 14 used to indicate that the line is in a closed state.

[0042] Further, the interface components include +KM, -KM, +BM, -BM, IA, IB, IC, IN, UA, UB, UC, UN, 7, 37 and 9 terminals;

[0043] The secondary conductors +KM and -KM are respectively connected to the power supply of the protection devic...

Embodiment 2

[0051] as attached Figure 1-3 shown;

[0052] A temporary backup protector for line protection of 35kV and below, including a protector box 10, a WXH-822A line protection device installed in the protector box 10, and a fixed panel fixedly installed on the protector box 10 And indicating elements, interface elements and operating elements respectively arranged on the fixed panel;

[0053] The indicating element, the interface element and the operating element are all electrically connected to the WXH-822A line protection device.

[0054] Further, the indicating element includes a trip indicator light 13 used to indicate that the line is in a trip state and a closing indicator light 14 used to indicate that the line is in a closed state.

[0055] Further, the interface components include +KM, -KM, +BM, -BM, IA, IB, IC, IN, UA, UB, UC, UN, 7, 37 and 9 terminals;

[0056] Further, the +KM, -KM, +BM, -BM, IA, IB, IC, IN, UA, UB, UC, UN, 7, 37 and 9 all use portable pin structur...

Embodiment 3

[0066] as attached Figure 1-3 shown;

[0067] A temporary backup protector for line protection of 35kV and below, which is characterized in that it includes a protector box 10, a WXH-822A line protection device installed in the protector box 10, and is fixedly installed in the protector box 10. The fixed panel on the top and the indicating elements, interface elements and operating elements respectively arranged on the fixed panel;

[0068] The indicating element, the interface element and the operating element are all electrically connected to the WXH-822A line protection device.

[0069] Further, the indicating element includes a trip indicator light 13 used to indicate that the line is in a trip state and a closing indicator light 14 used to indicate that the line is in a closed state.

[0070] Further, the interface components include +KM, -KM, +BM, -BM, IA, IB, IC, IN, UA, UB, UC, UN, 7, 37 and 9 connection terminals.

[0071] Further, the +KM, -KM, +BM, -BM, IA, IB, ...

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Abstract

The invention discloses a temporary backup protection instrument for line protection and defect elimination of 35kV and below. The protection instrument comprises a protection instrument box body, a WXH-822A type line protection device arranged in the protection instrument box body, a fixed panel fixedly arranged on the protection instrument box body, and an indication element, an interface element and an operation element which are respectively arranged on the fixed panel, and the indication element, the interface element and the operation element are electrically connected with the WXH-822Atype line protection device. The power failure time of primary equipment is greatly shortened, the instrument adopts a portable contact pin design, a protection function can be realized only by connecting a power supply loop, a current and voltage loop and a tripping and closing loop of an original protection device into the device through test wires, and the device can temporarily replace the original line protection device to operate. Wiring is simple, use is safe, and simple protection action can be achieved.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to a temporary backup protector for line protection of 35kV and below. Background technique [0002] Defect elimination refers to the work of eliminating the defects of substation equipment. Substation equipment trial run or run for a long time, there will be some defects. Such as inaccurate and damaged substation instrument indications, substation electrical switches cannot be closed or tripped, and electrical circuit contacts heat up and other faults, these are the contents of daily defect elimination. Eliminate the defects of daily operation equipment, so it is called Defect Elimination for short. Timely detection of equipment defects and timely treatment and elimination can ensure the safe operation of substation equipment and normal power supply. [0003] When the primary equipment such as lines, transformers, capacitors, and reactors loses the main protecti...

Claims

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Application Information

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IPC IPC(8): H02H7/26
CPCH02H7/26
Inventor 李玉浩杜梓铭王杉姚硕裴兴李波汪岩马静波杨佳乐安文鑫韩童张立辉郭建戌张雷田亮郭浩赵琳琳成莹张娜
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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