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Electric current monitoring instrument and electric current monitoring system

A current monitoring, current technology, applied in the direction of measurement using digital measurement technology, etc.

Inactive Publication Date: 2015-11-04
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a current monitoring instrument and a current monitoring system to solve the problem of simultaneously monitoring lightning current and power frequency short-circuit current

Method used

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  • Electric current monitoring instrument and electric current monitoring system
  • Electric current monitoring instrument and electric current monitoring system
  • Electric current monitoring instrument and electric current monitoring system

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The present invention discloses an electric current monitoring instrument and an electric current monitoring system. The electric current monitoring instrument comprises a first sensor used for detecting lightning current when a pole tower is stroked, a second sensor used for detecting power frequency short-circuit current generated on a power transmission line of the pole tower, and an electric current processor connected with the first sensor and the second sensor and used for processing the lightning current and the power frequency short-circuit current and outputting corresponding processing signals. With adoption of the electric current monitoring instrument and an electric current monitoring system, the problem that the lightning current and the power frequency short-circuit current cannot be simultaneously monitored is solved, thereby realizing simultaneous monitoring of the lightning current and the power frequency short-circuit current.

Description

technical field [0001] The invention relates to the field of electric power monitoring, in particular to a current monitor and a current monitoring system. Background technique [0002] According to the classification and statistics of power grid faults, among the total trip times of high-voltage transmission lines, the trip times caused by lightning strikes account for 40% to 70%. At present, after a fault occurs on a transmission line, it is generally used to manually patrol along the line to find the fault point. The fault inspection consumes a lot of manpower and material resources, and the inspection takes a long time. [0003] Patent application number 200920173157 in the prior art discloses a device capable of multi-channel monitoring of lightning current, through which the device for multi-channel monitoring of lightning current can quickly find the power failure point caused by lightning current. However, the lightning current monitoring device in the prior art can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25
Inventor 叶宽张祎果周恺李春生杨国华龚玲
Owner STATE GRID CORP OF CHINA
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