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Lightning arrester monitoring device capable of measuring transferred charges

A monitoring device and charge transfer technology, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems that affect the stability of the AC transmission system, cannot monitor the amount of energy absorbed by the arrester, and cannot judge the operating status of the arrester, etc. , to improve the stability of the

Pending Publication Date: 2021-06-11
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0003] The existing lightning arrester monitoring device can only record the number of operations of the lightning arrester and measure the leakage current flowing through the lightning arrester, but cannot monitor the amount of energy absorbed by the lightning arrester when it is working, resulting in the inability to judge the operating status of the lightning arrester, which in turn affects the stability of the AC transmission system sex

Method used

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  • Lightning arrester monitoring device capable of measuring transferred charges
  • Lightning arrester monitoring device capable of measuring transferred charges
  • Lightning arrester monitoring device capable of measuring transferred charges

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined...

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Abstract

The invention discloses a lightning arrester monitoring device capable of measuring transferred charges. The lightning arrester monitoring device comprises a voltage acquisition module, a charge sampling module, a signal triggering unit, a high-speed analog converter and a microprocessor; the voltage acquisition module is used for acquiring a first voltage signal of the lightning arrester; the charge sampling module is used for attenuating and rectifying the first voltage signal to obtain a second voltage signal; the signal triggering unit is used for generating an interrupt signal of the microprocessor according to the first voltage signal; the microprocessor is used for controlling the working state of the high-speed analog converter according to the interrupt signal; the high-speed analog converter is used for converting the second voltage signal into a third voltage signal; and the microprocessor is also used for calculating the quantity of electric charges transferred by the lightning arrester according to the third voltage signal and the working duration of the high-speed analog converter. The magnitude of energy absorbed when the lightning arrester works is monitored by measuring the electric charge quantity, so that the running state of the lightning arrester can be accurately judged, and the stability of an alternating current power transmission system is improved.

Description

technical field [0001] The invention relates to the technical field of lightning arrester monitoring, in particular to a lightning arrester monitoring device capable of measuring transferred charges. Background technique [0002] In the AC transmission system, the arrester is used to prevent the related equipment from being damaged due to the high voltage of the busbar, and the arrester monitoring device is a high-voltage electrical appliance used to monitor the discharge action of the arrester and the steady-state leakage current during normal operation. [0003] The existing lightning arrester monitoring device can only record the number of operations of the lightning arrester and measure the leakage current flowing through the lightning arrester, but cannot monitor the amount of energy absorbed by the lightning arrester when it is working, resulting in the inability to judge the operating status of the lightning arrester, which in turn affects the stability of the AC trans...

Claims

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Application Information

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IPC IPC(8): G01R29/24G01R31/00
CPCG01R29/24G01R31/00
Inventor 尹旷胡上茂刘刚廖民传屈路何嘉兴张义胡泰山蔡汉生贾磊方健冯瑞发梅琪刘浩邹宇邓杰祁汭晗
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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