Remote testing apparatus for automatic grounding operation of residual current operated protective device

A technology of residual current and test equipment, applied in the field of electric power, can solve problems such as operation safety risks and increase the workload of power supply stations, and achieve the effects of ensuring normal operation, improving the quality of operation and maintenance, and flexible and convenient installation

Active Publication Date: 2017-10-20
STATE GRID ZHEJIANG DEQING COUNTY POWER SUPPLY CO LTD +2
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AI Technical Summary

Problems solved by technology

[0004] The detection of the action characteristics of the residual current action protector of the rural power grid is the key task of the operation and maintenance of the power distribution equipment of the power supply enterprise. The action sensitivity of the device is the most effective defensive technical measure to directly prevent personal electric shock casualties. The workload of the power supply station presents operational safety risks

Method used

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  • Remote testing apparatus for automatic grounding operation of residual current operated protective device
  • Remote testing apparatus for automatic grounding operation of residual current operated protective device
  • Remote testing apparatus for automatic grounding operation of residual current operated protective device

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Embodiment Construction

[0026] Such as Figure 1 to Figure 3 As shown, the test device consists of a liquid crystal display, a data storage module, a CPU processor, a GSM module, a keyboard input module, a power supply module, a data acquisition module, a grounding module, two sets of switching switches and on-site test jump buttons. The specific functions are as follows:

[0027] (1) Data memory. It is mainly responsible for the data storage after the test device completes the action characteristic detection task.

[0028] (2) CPU processor. Execute the collection of residual current action protector operation data command transmission, automatic adjustment of grounding resistance value, automatic adjustment of relay coil time when on (off) connected to the grounding resistance, setting of timing action characteristic detection threshold, GSM SMS trigger, action characteristic detection Data comparison and judgment functions.

[0029] (3) Power module. The working power supply is connected and t...

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Abstract

The invention discloses a remote testing apparatus for an automatic grounding operation of a residual current operated protective device. The testing apparatus is used for automatically detecting operation characteristics of the residual current operated protective device, and comprises a data acquisition module, a data memory, a data processing module, a power supply module, a grounding module and a GSM module, wherein the data acquisition module exchanges data with the residual current operated protective device, the power supply modules provides a working power supply, the data memory is responsible for data storage; the data processing module controls the residual current operated protective device to detect the operation characteristics, the data processing module controls the grounding module to automatically adjust the corresponding grounding resistance, and the data processing module controls the content of a message sent by GSM; and the GSM module sends a message according to processing judgment of the data processing module. The testing apparatus is small in size, and has complete functions of data acquisition, intelligent judgment and remote communication, and the correct rate of detecting the operation characteristics of the residual current operated protective device is improved.

Description

[0001] The patent application of the present invention is a divisional application of the invention title "a remote automatic grounding action test device". The application date of the original application is May 13, 2015, and the application number is 2015102411915. technical field [0002] The invention relates to electric power technology, in particular to a remote automatic grounding action test device for a residual current action protector. Background technique [0003] The hierarchical installation of residual current-operated protectors in rural low-voltage power grids is one of the effective measures to reduce or prevent personal electric shock casualties, and it is also a technical measure to prevent electrical fires and electrical equipment damage caused by leakage. Over the years, the promotion and application of residual current operating protectors have spread all over the country, and are used by families, enterprises and power supply companies, especially the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCG01R31/3277
Inventor 吴宇红姚建华徐淦荣章建森方百荣朱腾海纪涛
Owner STATE GRID ZHEJIANG DEQING COUNTY POWER SUPPLY CO LTD
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