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A power line carrier communication device for cross 10kv distribution transformer

A power line carrier and distribution transformer technology, applied in the field of electric power, can solve the problem that power line carrier communication signals cannot communicate with each other, etc.

Active Publication Date: 2020-01-17
江西省计量测试研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of transformers between voltage levels, power line carrier communication signals cannot communicate with each other between voltage levels, that is, distribution transformers have a strong blocking effect on power line carrier communication signals, which is manifested in signal attenuation exceeding 50dB. The carrier signal can only be transmitted within a distribution transformer area

Method used

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  • A power line carrier communication device for cross 10kv distribution transformer
  • A power line carrier communication device for cross 10kv distribution transformer
  • A power line carrier communication device for cross 10kv distribution transformer

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The specific technical scheme of the patent of the present invention is:

[0031] Aiming at the frequency selectivity characteristics of distribution transformers to carrier signals, a "power line carrier communication device across 10kV distribution transformers" is deployed on the medium-voltage side and low-voltage side of 10kV distribution transformers. The frequency recognition process is started by triggering the load change of the ...

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Abstract

The invention discloses a power line carrier communication device for crossing a 10kV distribution transformer. The power line carrier communication device is characterized in that a medium-voltage side transmission line and a low-voltage side transmission line of the 10kV distribution transformer are respectively provided with a power line carrier communication device.

Description

technical field [0001] The invention belongs to the field of electric power, and in particular relates to a power line carrier communication device for spanning 10kV distribution transformers. Background technique [0002] In my country, the power grid can be divided into high voltage, medium voltage and low voltage according to the voltage level. The voltage levels of high voltage are divided into 500kV, 220kV, and 110kV; the voltage levels of medium voltage are divided into 35kV, 10kV, 6kV, and 3kV; the voltage levels of low voltage are divided into 380V and 220V. Among them, lines above 330kV are customarily called ultra-high voltage lines, lines of 110kV and 220kV are high-voltage lines, lines of 35kV and 60kV are transmission lines, and lines below 10kV are distribution lines. In areas such as residential areas, industrial parks, and factories and enterprises, the power grid exists in the form of distribution lines below 10kV. In these areas, for electrical equipment,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54H04B3/56H04L12/28
CPCH04B3/54H04B3/56H04L12/2856
Inventor 钱永安高思远潘倩程梦媛乐渝宁汤志彪孙淳吴安郑朕陶进陈水平刘文英
Owner 江西省计量测试研究院
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