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Branch load monitoring device for distribution transformer

A technology for distribution transformers and branch loads, which is used in AC network voltage adjustment, information technology support systems, and power network operating system integration, etc. , the effect of simple device structure

Inactive Publication Date: 2014-03-26
WENZHOU TUSHENG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Distribution transformers usually have multiple branch circuits. If the power loads carried by each branch circuit (that is, branch load) are seriously unbalanced, it will affect the safe and economical operation of the distribution network.

Method used

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  • Branch load monitoring device for distribution transformer
  • Branch load monitoring device for distribution transformer
  • Branch load monitoring device for distribution transformer

Examples

Experimental program
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Embodiment 1

[0071] Based on Embodiment 1, Embodiment 2 of the present invention discloses a distribution transformer branch load monitoring device to realize online monitoring of distribution transformer branch load distribution, see image 3 , including: a voltage detection unit 100, a current detection unit 200, a branch circuit sampling chip 300, a main control chip 400 and a communication module 500;

[0072] Specifically, the communication module 500 is connected between the main control chip 400 and the power distribution terminal, and is used to output the actual power grid load parameters processed by the main control chip 400 to the power distribution terminal, so as to realize the deepening of the intelligent distribution transformer terminal. application;

[0073] Among them, in view of the characteristics of the isolated RS485 communication module, such as convenient network connection, good anti-interference performance, and long transmission distance, the communication modul...

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Abstract

The embodiment of the invention discloses a branch load monitoring device for a distribution transformer. The branch load monitoring device comprises a voltage detecting unit, a current detecting unit, a branch circuit sampling chip and a main control chip, wherein the voltage detecting unit is used for measuring a three-phase voltage analog signal of the distribution transformer; the current detecting unit is used for measuring the three-phase current analog signal of each branch circuit of the distribution transformer; the branch circuit sampling chip is connected with the voltage detecting unit and the current detecting unit respectively, and is used for obtaining a power grid load parameter digital signal of each phase line of each branch circuit according to the three-phase voltage analog signal and the three-phase current analog signal; the main control chip is connected with the branch circuit sampling chip, and is used for reading the power grid load parameter digital signal and obtaining the practical power grid load parameter of each phase line of each branch circuit so as to realize online monitoring of the branch load distribution condition of the distribution transformer.

Description

technical field [0001] The invention relates to the technical field of power load monitoring, and more specifically relates to a distribution transformer branch load monitoring device. Background technique [0002] Distribution transformers usually have multiple branch circuits. If the power loads carried by each branch circuit (that is, branch load) are seriously unbalanced, it will affect the safe and economical operation of the distribution network. Therefore, it is necessary to carry out online monitoring of the branch load distribution of distribution transformers, so that when the distribution of branch loads is seriously unbalanced, it can be found in time and the load transfer between the branch circuits can be quickly carried out, so as to ensure the safety of the distribution network. Economic Operation. Contents of the invention [0003] In view of this, the present invention provides a distribution transformer branch load monitoring device to realize online mo...

Claims

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Application Information

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IPC IPC(8): H02J3/14
CPCY04S20/222Y02B70/3225
Inventor 叶勤风姜衍欧建有刘若挺黄余林
Owner WENZHOU TUSHENG SCI & TECH
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