Electric power equipment fault diagnosing method and apparatus

A fault diagnosis device and power equipment technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as high false alarm rate, low accuracy of fault diagnosis of power equipment, and incomplete information

Inactive Publication Date: 2017-05-17
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0004] However, the current fault diagnosis methods are all based on the characteristic quantity of the state quantity of the power equipment to judge the

Method used

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  • Electric power equipment fault diagnosing method and apparatus
  • Electric power equipment fault diagnosing method and apparatus
  • Electric power equipment fault diagnosing method and apparatus

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[0049] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. Rather, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0050] The embodiment of the present invention provides a fault diagnosis method for power equipment, see figure 1 ,include:

[0051] S100: Obtain current temperature data of the power equipment to be diagnosed.

[0052] In the specific implementation process, a temperature sensor is set on the power device to be diagnosed, the temperature data of the power device to be diagnosed is measured in real ...

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Abstract

The invention relates to an electric power equipment fault diagnosing method and an apparatus, comprising: obtaining the temperature data of a piece of to-be-diagnosed electric power equipment at the present time; obtaining the temperature data, the temperature differential value and the temperature variation rate of the previous time; calculating the temperature differential value and the temperature variation rate of the present time; conducting data integration between the temperature differential value and the temperature variation rate of the present time and those of the previous time for an integrated result; and determining whether the to-be-diagnosed electric power equipment suffers from any fault or not at the present time. The electric power equipment diagnosing method proposed by the invention is based on the data integration of three variables: the temperature data, the temperature differential value and the temperature variation rate for an electric power equipment diagnosing result, which can diagnose the fault of the equipment in real time. In addition, the entire detection process is fast and highly accurate with low erroneous fault reporting, therefore, reducing redundancy information to a large extent.

Description

Technical field [0001] The present invention relates to the technical field of power equipment fault diagnosis, in particular to a method and device for power equipment fault diagnosis. Background technique [0002] With the continuous expansion of the scale of the power system, my country's power supply level is increasing, which better meets the power needs of various users. At the same time, people's requirements for power supply reliability are also increasing. An important aspect of improving power supply reliability is to reduce the occurrence of power equipment failures and quickly diagnose power equipment failures in order to promptly repair and restore the normal operation of the power system as soon as possible. The emergence of fault diagnosis technology has opened up a new way to improve the reliability and safety of power supply for power equipment. [0003] The current power equipment fault diagnosis method obtains the status quantity data of the power equipment to ...

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Application Information

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IPC IPC(8): G01K13/00G01R31/00
CPCG01K13/00G01R31/00
Inventor 于虹
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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