Fault indicator comprehensive testing method and testing system

A fault indicator and comprehensive testing technology, applied in the direction of instruments, measuring devices, measuring electrical variables, etc., can solve the problems of lack of detection platform in testing institutions, uneven product quality, low pass rate of fault indicators, etc., to improve equipment The qualified rate of network access, the improvement of professional management level, and the effect of reducing the low rate of correct action

Active Publication Date: 2015-12-16
FUJIAN AUTOMATION ELECTRIC POWER TECH
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AI Technical Summary

Problems solved by technology

There are many types of fault indicators, and the product quality of manufacturers is uneven. Due to the lack of qualified testing platforms in the testing organization, the qualified rate of fault indicators connected to the network is low

Method used

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  • Fault indicator comprehensive testing method and testing system
  • Fault indicator comprehensive testing method and testing system
  • Fault indicator comprehensive testing method and testing system

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Embodiment Construction

[0035] see figure 1As shown, a comprehensive testing method for a fault indicator of the present invention, the testing method needs to provide: a host computer, an electrical quantity acquisition unit, a core control unit PLC, a touch screen, a power amplifier, a three-phase output device and a single-phase output device; The core control unit PLC communicates with the information processing system of the host computer through the RS232 interface, the touch screen sends control instructions to the core control unit PLC through the RS232 interface, the core control unit PLC completes the analysis and execution of the control instructions, and the core control unit PLC passes The upper computer simulates various fault types of the distribution network, and the core control unit PLC controls the three-phase output device and single-phase output device to output the changes of voltage and current corresponding to various fault types through the RS485 interface, and collects the vo...

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Abstract

The invention provides a fault indicator comprehensive testing system. The fault indicator comprehensive testing system comprises an electric quantity acquisition unit, a core control unit PLC, a touch screen, a power amplifier, a three-phase output device and a single-phase output device. The fault indicator comprehensive testing system and a fault indicator comprehensive testing method are used for simulating various kinds of operational states of an actual 10kV power distribution line such as waveforms of short-circuit failure, reclosing, manual switching large load and non-faulty line reclosing, achieve millisecond level abrupt change of primary current and voltage, are applied to fault indicator equipment grading, fault analysis, sampling inspection on arrival of goods, feasibility evaluation, bid invitation detection, grid-access sampling test and the like, have the intensive, automatic and whole-process advantages, reduce the phenomena that the fault indicator operated in the grid is low in action accuracy and is prone to generate missing alarm and false alarm, and increase the grid-access qualified rate.

Description

technical field [0001] The invention relates to the technical fields of electrical equipment and electrical engineering, in particular to a fault indicator comprehensive testing method and testing system. Background technique [0002] my country has introduced fault indicators since the 1990s. After more than ten years of development, it has been widely used in distribution automation. At present, the accumulative production quantity of fault indicators in the whole country has reached millions (sets), and there are about a hundred manufacturing enterprises producing indicators. Due to the wide application of fault indicators, their quality problems have affected the development of distribution network automation. At present, there is still no more scientific and standardized technical means and testing platform for the detection of fault indicators, and the companies in various network provinces have not yet carried out the detection work in this area or have not done much...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 郑常营许为松曹建强余正财孙振业徐士华王军锋梁安韬赵晖
Owner FUJIAN AUTOMATION ELECTRIC POWER TECH
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