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Stepped active balance and reactive compensation management device for low-voltage transformer area

A low-voltage station area, balanced technology, applied in the direction of reactive power compensation, reactive power adjustment/elimination/compensation, harmonic reduction device, etc., can solve the problems of low voltage at the user end, large loss in the station area, etc., and achieve safety assurance , reduce the branch line loss, and improve the efficiency of use

Inactive Publication Date: 2016-01-20
BEIHAI SHENLAN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the patent of the present invention is to design a low-voltage station area active power balance and reactive power compensation treatment device to solve the problems of low-voltage station area user terminal voltage is too low, station area loss is too large, etc.

Method used

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  • Stepped active balance and reactive compensation management device for low-voltage transformer area
  • Stepped active balance and reactive compensation management device for low-voltage transformer area
  • Stepped active balance and reactive compensation management device for low-voltage transformer area

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Embodiment Construction

[0036] attached figure 1 The wiring diagram of the functional modules of the present invention is given.

[0037] in the attached figure 1 Among them, the outlet device is installed at the low-voltage outlet of the transformer, which is mainly responsible for the balance of the three-phase active load of the transformer, reactive power compensation and filtering, etc., and the communication with the background data processing system is realized through the public remote communication network or a dedicated communication network, and the branch device Communication is realized by power line frequency communication, carrier communication or moment distance wireless communication.

[0038] The installation location of the branch circuit device is generally tens to hundreds of meters from the low-voltage outlet of the transformer to the center of gravity of the user or load. It is mainly responsible for the balance of the three-phase active load behind the installation, reactiv...

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Abstract

The invention discloses a stepped active balance and reactive compensation management device for a low-voltage transformer area. The stepped active balance and reactive compensation management device is characterized by comprising an outlet end power quality control device and a branch power quality control device, wherein the outlet end power quality control device is arranged at a low-voltage outlet end of a transformer; and the branch power quality control device is arranged in front of a branch load. According to the stepped active balance and reactive compensation management device for the low-voltage transformer area, the user voltage is stabilized; and a branch loss is reduced.

Description

technical field [0001] The invention belongs to the field of power quality control in low-voltage station areas, and in particular relates to a stepwise active power balance and reactive power compensation treatment device for low-voltage station areas. Background technique [0002] The current low-voltage station area mainly refers to 10KV / 400V power supply. The basic wiring method: high-voltage is △ connection, low-voltage is Y-type, and its power quality mainly has three indicators: one is power supply reliability, the other is voltage qualification rate, One is the voltage harmonic distortion rate. Power supply reliability describes the ratio of power supply time to the total time, which is determined by the power generation and transmission department and has nothing to do with the load status of the station area. Therefore, for low-voltage station areas, it mainly includes voltage pass rate and voltage harmonic distortion rate. The power supply unit only assesses the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/12H02J3/16H02J3/01H02J3/26H02J3/18
CPCY02E40/30Y02E40/40Y02E40/50
Inventor 姚普粮龙光成劳永浩黄镜彬劳承毅傅春盛林朝光欧世文许承军何卓识韦甘铭
Owner BEIHAI SHENLAN SCI & TECH DEV
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