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Method for automatically detecting action characters of residual current protective device

A technology of residual current and action characteristics, applied in the field of electric power, can solve problems such as increasing the workload of power supply stations and operating safety risks, and achieve the effect of improving the quality of operation and maintenance, ensuring normal operation, and avoiding customer complaints.

Active Publication Date: 2015-09-02
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0003] 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

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  • Method for automatically detecting action characters of residual current protective device
  • Method for automatically detecting action characters of residual current protective device
  • Method for automatically detecting action characters of residual current protective device

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Embodiment Construction

[0024] 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:

[0025] (1) Data memory. It is mainly responsible for the data storage after the test device completes the action characteristic detection task.

[0026] (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.

[0027] (3) Power module. The working power supply is connected and t...

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Abstract

The invention discloses a method for automatically detecting action characters of a residual current protective device. The method comprises the following steps: firstly, preparing for detecting the action characters of the residual current protective device; secondly, adjusting a grounded resistor for detection; thirdly, detecting and collecting detection data of the action characters of the residual current protective device; and finally, comparing and judging data of the action characters of the residual current protective device before the detection, in the detection, and after the detection. According to the method, the accuracy of detecting the action characters of the residual current protective device is improved.

Description

technical field [0001] The invention relates to electric power technology, in particular to a method for detecting the operating characteristics of a residual current operating protector. Background technique [0002] 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 intelligent residual current operating protectors installed by power supply companies in recent years, which provide power supply companies with a More pressure is relieved. [0003] The detection of the operation characteristics of the residual current operati...

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Application Information

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IPC IPC(8): G01R31/00G01R31/327
Inventor 吴宇红姚建华徐淦荣章建森方百荣朱腾海纪涛
Owner STATE GRID CORP OF CHINA
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