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System, method and device for obtaining residual service life of high-voltage circuit breaker

A high-voltage circuit breaker life-span technology, applied in the electric power field, can solve problems such as poor grid security and inability to accurately obtain the remaining life of high-voltage circuit breakers, and achieve the effect of improving grid security

Inactive Publication Date: 2017-07-25
ZHUHAI YINENG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a system, method and device for obtaining the remaining life of a high-voltage circuit breaker, so as to at least solve the technical problem that the remaining life of a high-voltage circuit breaker cannot be accurately obtained, resulting in poor security of the power grid

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  • System, method and device for obtaining residual service life of high-voltage circuit breaker
  • System, method and device for obtaining residual service life of high-voltage circuit breaker

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Embodiment 1

[0026] According to an embodiment of the present invention, a system embodiment for obtaining the remaining life of a high-voltage circuit breaker is provided, figure 1 is an optional system structure diagram for obtaining the remaining life of a high-voltage circuit breaker according to an embodiment of the present invention, such as figure 1 As shown, the system includes:

[0027] The photoelectric transformer 10 is used to collect transient current signals passing through the high voltage circuit breaker.

[0028] Specifically, the method of collecting the breaking current of the high-voltage circuit breaker is generally obtained through CT conversion, and then collected through the protection device. However, ordinary CT uses the principle of electromagnetic effect and uses an iron core as a conductive medium, which has low dynamics and a small measurement range. Moreover, due to the influence of magnetic saturation, the linearity and accuracy are poor when measuring larg...

Embodiment 2

[0063] According to an embodiment of the present invention, an embodiment of a method for obtaining the remaining life of a high-voltage circuit breaker is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0064] image 3 is a flow chart of an optional method for obtaining the remaining life of a high-voltage circuit breaker according to an embodiment of the present invention, such as image 3 As shown, the method includes:

[0065] Step S102, the acquisition unit receives the transient current signal of the high voltage circuit breaker sent by the photoelectric transformer.

[0066] Specifically, the photoelectric transformers can be respectively connected to the t...

Embodiment 3

[0080] According to an embodiment of the present invention, an embodiment of a device for obtaining the remaining life of a high-voltage circuit breaker is provided, Figure 4 is a schematic diagram of an optional device for obtaining the remaining life of a high-voltage circuit breaker according to an embodiment of the present invention, such as Figure 4 As shown, the device may include:

[0081] The receiving module 40 is configured to receive the transient current signal of the high voltage circuit breaker sent by the photoelectric transformer.

[0082] Specifically, the photoelectric transformers can be respectively connected to the three phases of the high voltage circuit breaker to obtain the three phase current data of the high voltage circuit breaker, that is to say, the transient current signal can include the three phase current data of the high voltage circuit breaker. Through the photoelectric transformer, the opening and closing current of multi-channel high-vol...

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Abstract

The invention discloses a system, method and device for obtaining the residual service life of a high-voltage circuit breaker. The system comprises a photoelectric mutual inductor which is used for collecting a transient current signal passing through a high-voltage circuit breaker; a collection unit which is connected with the photoelectric mutual inductor and is used for obtaining the arcing time of the high-voltage circuit breaker and determining the switching-off current of the high-voltage circuit breaker according to the transient current signal; a processor which is connected with the collection unit, and is used for determining the residual service life of the high-voltage circuit breaker according to the switching-off current and the arcing time. The system solves a technical problem of poor safety of a power grid because the residual service life of the high-voltage circuit breaker cannot be obtained accurately.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a system, method and device for obtaining the remaining life of a high-voltage circuit breaker. Background technique [0002] The remaining life of electrical equipment refers to the time during which the electrical equipment can maintain normal operation when its overall performance drops to the point that it cannot complete its intended function during operation. The high-voltage circuit breaker is the most important high-voltage switchgear in the power system. It plays the dual role of control and protection in the power grid. If the high-voltage circuit breaker fails, it will cause a large-scale power outage and cause huge economic losses. [0003] At present, there are mainly the following methods for evaluating the service life of high-voltage circuit breakers: First, according to the defect statistical data of high-voltage circuit breakers, the fault types are divided, and th...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3272G01R31/3274
Inventor 侯瑞云
Owner ZHUHAI YINENG ELECTRONICS TECH
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