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Current accuracy calibration method for fail indicator production link

A technology for fault indicators and production links, applied to instruments, measuring electrical variables, measuring devices, etc., can solve the problem that the calibration method of fault indicators cannot improve the current accuracy and other problems

Active Publication Date: 2016-03-23
KEDA INTELLIGENT ELECTRICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the defect that the calibration method of the fault indicator in the prior art cannot improve the current accuracy, and to provide a current accuracy calibration method used in the production link of the fault indicator to solve the above problems

Method used

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  • Current accuracy calibration method for fail indicator production link
  • Current accuracy calibration method for fail indicator production link
  • Current accuracy calibration method for fail indicator production link

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Embodiment Construction

[0052] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0053] Such as figure 1 As shown in the present invention, a method for calibrating current accuracy in the production link of a fault indicator is divided into two working modes: calibration mode and normal mode. The current calculation method in the calibration mode is used to avoid miscalibration of the calibrated fault indicator and improve the calibration efficiency; the conventional calibration coefficient in the normal mode can be used to improve the current accuracy, which is related to the accurate and reliable judgment of line faults. Include the following steps:

[0054] The first step is to check the mode. Calibrate the current accuracy in the calibration mode, which specifically includes the following steps:

[0055] (1)...

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Abstract

The present invention relates to a current accuracy calibration method for a failure indicator production link. Compared with the prior art, the defect that the current accuracy can not be improved by the calibration method of a fault indicator is solved. The method comprises a verification mode of calibrating the current accuracy in a verification mode and a normal mode of calculating a routine calibration coefficient in a normal mode. According to the current accuracy calibration method, the failure indicator calibration process is optimized, and the accuracy of line load current sampling is improved.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of medium-voltage distribution network faults, in particular to a current accuracy calibration method used in the production link of fault indicators. Background technique [0002] In the field of medium-voltage distribution networks, the detection and location of short-circuit faults and ground faults has always been a technical difficulty related to the normal operation of the distribution network. Accurately finding faulty sections can effectively avoid switching operations on non-faulty lines and ensure power supply continuity. Since the fault indicator can indicate and report short-circuit and ground faults, the fault section can be found by observing the status change of the fault indicator body. At present, many scholars and institutions have proposed excellent fault judgment methods, and they have been widely used. However, the accuracy of fault indicators has always been a pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
CPCG01R35/005
Inventor 秦明辉陈雷刚
Owner KEDA INTELLIGENT ELECTRICAL TECH
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