Low-voltage three-phase load unbalance automatic regulation system

A load imbalance and automatic adjustment technology, applied in the direction of system integration technology, information technology support system, multi-phase network elimination/reduction of asymmetry, etc., to achieve the effect of improving power supply efficiency

Inactive Publication Date: 2012-09-19
国网山东平阴县供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the above deficiencies, the present invention provides a low-voltage three-phase load unbalance automatic adjustment system, which can not only effectively solve the problem of unchanging three-phase load balance adjustment in the low-voltage station area, but also facilitate data review and processing, saving time and labor

Method used

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  • Low-voltage three-phase load unbalance automatic regulation system
  • Low-voltage three-phase load unbalance automatic regulation system

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Embodiment Construction

[0021] Such as figure 1 As shown, a kind of low-voltage three-phase load unbalanced automatic adjustment system of the present invention comprises a monitoring system platform, a monitoring terminal, an electronic residual current circuit breaker, an automatic reversing switch and a temperature acquisition device, and the monitoring terminal communicates with the The monitoring system platform is connected, the electronic residual current circuit breaker is connected to the monitoring terminal through 485 communication, and the automatic reversing switch is connected to the monitoring terminal through wireless power carrier communication.

[0022] Wherein, the residual current circuit breaker is installed on each power supply branch on the low-voltage side of the distribution network, and the phase line current of each branch is sent to the monitoring terminal through 485 communication; the automatic phase change switch is installed on the phase line line In the unit meter box...

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Abstract

The invention discloses a low-voltage three-phase load unbalance automatic regulation system, which comprises a monitoring system platform and a monitoring terminal, wherein the monitoring terminal is connected with the monitoring system platform through a communication network. The low-voltage three-phase load unbalance automatic regulation system is characterized by also comprising a rest current circuit breaker and an automatic reversing switch, wherein the rest current circuit breaker is connected with the monitoring terminal through a 485 communication mode, and the automatic reversing switch is connected with the monitoring terminal through a wireless electric carrier wave communication mode. After the adoption of the structure, the history of artificial three-phase load balance regulation in the paste dozens of years is changed, the defects of inaccuracy and trouble caused by meter box unit current estimation and time-phased measurement on each branch phase line current for three-phase load balance regulation are overcome, in addition, the automatic regulation of the three-phase line load unbalance and monitoring and improvement of line terminal low-voltage are realized, the marketing management and monitoring on the transformer oil temperature and low-pressure side wire outlet head temperature are realized, and the power supply efficiency is improved.

Description

technical field [0001] The invention relates to a three-phase electric regulation system, in particular to a low-voltage three-phase load unbalance automatic regulation system. Background technique [0002] With the continuous improvement of people's living standards, the development of enterprise production and the extension of staff living areas, a large number of high-power single-phase household appliances such as: air conditioners, electric water heaters, rice cookers, microwave ovens, ovens, etc. have entered ordinary households. While bringing people a comfortable, convenient and fast life, it also has a certain impact on the safety and economic operation of the low-voltage power supply system of the power supply department, which will make the three-phase current amplitude and its phase angle unequal to each other, and the user's load is random The three-phase load is asymmetrical, and the asymmetrical load causes the three-phase voltage of the power grid to be unbal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26H02J13/00
CPCY04S10/545Y04S40/126Y02E40/50Y02E40/76Y02B90/2653Y02B90/20Y02E40/70Y04S10/50
Inventor 陈健任尚军宋金申李冰赵衍涛胡华业张文
Owner 国网山东平阴县供电公司
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