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Electronic current transformer for intelligent isolation circuit breaker

A technology of current transformers and isolation circuit breakers, which is applied in the field of designing smart grids, can solve problems such as failures of intelligent isolation circuit breakers, achieve improved safety and reliability, small footprint, and improved integration and miniaturization degree of effect

Inactive Publication Date: 2016-11-23
GUODIAN NANJING AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design or quality defects of the suspended fiber optic insulator itself will cause the intelligent isolation circuit breaker to fail, creating new fault points for the intelligent isolation circuit breaker

Method used

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  • Electronic current transformer for intelligent isolation circuit breaker
  • Electronic current transformer for intelligent isolation circuit breaker
  • Electronic current transformer for intelligent isolation circuit breaker

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Explanation of relevant technical terms:

[0033] Intelligent isolating circuit breaker: The intelligent isolating circuit breaker can realize the integrated manufacturing of isolating switch, electronic current transformer and circuit breaker. Through the high integration of primary and secondary equipment, it can realize functional combination and save land resources.

[0034]Active electronic current transformer: an electronic current transformer that needs power supply on the high potential side, the protection coil is composed of a Rogowski coil, the measuring coil is composed of a low power coil, the primary sensor and data acquisition unit are installed on the high potential side, and the data There are two ways of power supply for the acquisition unit and they are used as backup for each other. One is the energy-taking ...

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PUM

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Abstract

The invention discloses an electronic current transformer for an intelligent isolation circuit breaker, the electronic current transformer comprises a main body and a transmission loop, the electronic current transformer is characterized in that: the transmission loop comprises a electronic current transformer primary sensor (11), an optical fiber conversion device (12), an optical fiber grooving hollow composite insulator (13) and an electronic current transformer convertor (14), and the optical fibers of upper and lower ends of the optical fiber grooving hollow composite insulator (13) are respectively connected with the optical fiber of the optical fiber conversion device (12) and the electronic current transformer convertor (14) in a inserting or welding way. According to the invention, a supporting insulator of the intelligent isolation circuit breaker is adopted to serve as an optical fiber transmission carrier, a suspension type optical fiber insulator is omitted, fault points of the isolation circuit breaker are reduced, and the safety and reliability of isolation circuit breaker site operating are improved.

Description

technical field [0001] The invention designs a smart grid, and in particular relates to a novel optical fiber transmission method for an electronic current transformer used in an intelligent isolation circuit breaker. Background technique [0002] With the continuous deepening of smart grid and smart substation construction, the application of smart isolating circuit breakers is becoming more and more extensive, and the electronic current transformers integrated and installed on smart isolating circuit breakers are also widely used. The primary sensor of the electronic current transformer is installed on the high potential side of the intelligent isolation circuit breaker, the converter part is installed on the ground potential side, and the optical fiber is a component connecting the primary part and the secondary part of the electronic current transformer. Energy or data is transmitted between the secondary parts; due to the high potential difference between the primary pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/24
CPCG01R15/24
Inventor 蒋明杰戚庆
Owner GUODIAN NANJING AUTOMATION
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