Overvoltage counting circuit and lightning arrester system

A counting circuit and overvoltage technology, which is applied in the direction of measuring current/voltage, instruments, measuring electrical variables, etc., can solve the problems of poor working stability of overvoltage counting circuits, etc.

Pending Publication Date: 2020-10-23
SHENZHEN POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide an overvoltage counting circuit and arrester system for the problem of poor working stability of the current overvoltage counting circuit

Method used

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  • Overvoltage counting circuit and lightning arrester system
  • Overvoltage counting circuit and lightning arrester system
  • Overvoltage counting circuit and lightning arrester system

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Embodiment Construction

[0063] In order to make the purpose, technical solution and advantages of the present application clearer, an overvoltage counting circuit and lightning arrester of the present application will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0064] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The or...

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PUM

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Abstract

The invention relates to an overvoltage counting circuit and a lightning arrester system. The overvoltage counting circuit comprises a first conductor assembly, a bridge rectifier, a capacitor assembly and an electromagnetic counter. The bridge rectifier is arranged between a lightning arrester and the capacitor assembly as well as between the lightning arrester and the electromagnetic counter. The bridge rectifier has the characteristic of one-way conduction, and can effectively prevent the situations that the working performance of the lightning arrester is influenced and the lightning arrester is even burnt since reverse current formed by accumulated charges on the capacitor assembly or reverse current formed by other reasons flows back to the lightning arrester. According to the overvoltage counting circuit provided by the embodiment of the invention, the technical problem of poor working stability of an existing lightning arrester is solved by arranging the bridge rectifier, and the technical effect of improving the working stability of the lightning arrester is achieved.

Description

technical field [0001] The present application relates to the technical field of electronic circuits, in particular to an overvoltage counting circuit and a lightning arrester system. Background technique [0002] Overvoltage refers to the long-term voltage fluctuation phenomenon in which the root mean square value of the AC voltage exceeds 10% of the rated voltage value at power frequency and lasts for more than one minute. In order to avoid the impact of overvoltage on electrical appliances, overvoltage protectors or lightning arresters are generally used to protect the electrical appliances or process the generated overvoltage. The overvoltage protector is usually set between two electrical appliances to break and protect the generated overvoltage, while the arrester is used to short-circuit the generated overvoltage to protect the electrical appliances. The principles of the two are essentially different. [0003] The arrester is used for short-circuit discharge of the ...

Claims

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Application Information

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IPC IPC(8): G01R19/17
CPCG01R19/17
Inventor 唐峰吕启深鲜成李默林杨震洋李建明
Owner SHENZHEN POWER SUPPLY BUREAU
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