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Insulation fault searching circuit and device

An insulation fault and circuit technology, applied in testing circuits, testing dielectric strength, etc., can solve problems such as low efficiency, wide fault finding range, and poor fault monitoring results, so as to ensure fault-free operation, improve reliability, Guarantee the effect of safe production

Pending Publication Date: 2021-11-19
广西电网有限责任公司桂林供电局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the existing technology, most of the fault finding technologies are aimed at the DC system, and the existing technology has a wide range of fault finding, and cannot measure the characteristic current with high precision, resulting in poor precision and low efficiency of fault monitoring results problem, the following application is made:

Method used

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  • Insulation fault searching circuit and device
  • Insulation fault searching circuit and device
  • Insulation fault searching circuit and device

Examples

Experimental program
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Embodiment 1

[0027] An insulation fault finding circuit, in a preferred embodiment of the application, such as figure 1 As shown, the insulation fault finding circuit includes: a main control module, an acquisition module and a display module, wherein:

[0028] The collection module collects circuit current, the main control module outputs monitoring results according to the current signal collected by the collection module, and the display module displays the monitoring results output by the main control module.

[0029] Described main control module is the main control CPU of described insulation fault search circuit, and described main control module adopts stm32f407, and this chip is the STM32F4 series single-chip microcomputer (MCU) based on ARM Cortex-M4 and has adopted the NVM technology and ART of STMicroelectronics. The accelerator can achieve 225DMIPS / 608CoreMark performance when executing instructions through flash memory at a working frequency of 180MHz, which is the highest pe...

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PUM

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Abstract

The invention discloses an insulation fault searching circuit and device, and relates to the technical field of power fault searching. The insulation fault searching circuit comprises a main control module, an acquisition module and a display module, wherein the acquisition module acquires circuit current, the main control module outputs a monitoring result according to a current signal acquired by the acquisition module, and the display module displays the monitoring result output by the main control module. The insulation fault searching circuit special for an alternating current system is arranged, circuit current is collected, the collected current is analyzed through the main control module, the monitoring result is output, the circuit is specially used for alternating current system insulation fault searching, and the problem that no searching equipment exists in alternating current insulation is solved; and insulation faults of the alternating current system can be found in time, fault-free operation of the alternating current system is guaranteed, reliability of the alternating current system for a station is improved, and safe production of electric power is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electric fault finding, in particular to an insulation fault finding circuit and device. Background technique [0002] The insulation failure of the station AC system will directly lead to the damage of electric energy. In severe cases, it will cause the power failure of the station AC system, and in more serious cases, protection misoperation accidents will occur, and the impact is extremely bad. In the prior art, most of them are fault-finding technologies for DC systems, and the fault-finding range in the prior art is wide, and it cannot be measured through the characteristic current with high precision, resulting in poor accuracy of the fault monitoring results in the prior art. Low efficiency. Contents of the invention [0003] Based on the existing technology, most of the fault finding technologies are aimed at the DC system, and the fault finding range of the existing technology is wide, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/14
CPCG01R31/14
Inventor 吴江雄徐超阳国燕杨鑫方柳程向辉陈葆超龙登其李河
Owner 广西电网有限责任公司桂林供电局