BR112019025557A2 - Método seguro de operação para supressão do arco de redução de tensão da fase de falha de aterramento do sistema de aterramento não eficaz - Google Patents

Método seguro de operação para supressão do arco de redução de tensão da fase de falha de aterramento do sistema de aterramento não eficaz

Info

Publication number
BR112019025557A2
BR112019025557A2 BR112019025557-5A BR112019025557A BR112019025557A2 BR 112019025557 A2 BR112019025557 A2 BR 112019025557A2 BR 112019025557 A BR112019025557 A BR 112019025557A BR 112019025557 A2 BR112019025557 A2 BR 112019025557A2
Authority
BR
Brazil
Prior art keywords
phase
voltage
grounding
ground
ineffective
Prior art date
Application number
BR112019025557-5A
Other languages
English (en)
Other versions
BR112019025557B1 (pt
Inventor
Xiangjun ZENG
Original Assignee
Changsha University Of Science And Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha University Of Science And Technology filed Critical Changsha University Of Science And Technology
Publication of BR112019025557A2 publication Critical patent/BR112019025557A2/pt
Publication of BR112019025557B1 publication Critical patent/BR112019025557B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

método seguro de operação para supressão do arco de redução de tensão da fase de falha de aterramento do sistema de aterramento não eficaz a presente invenção descreve um método seguro de operação para supressão do arco de redução de tensão de uma fase de falha de aterramento de um sistema de aterramento não eficaz para uso na operação de segurança de falha de aterramento de uma rede de distribuição ou gerador de aterramento não eficaz de ponto neutro. quando ocorre uma falha de aterramento monofásica, uma fonte de tensão externa é aplicada no lado do sistema de aterramento não eficaz entre um barramento e o aterramento, ou entre uma linha e o aterramento, ou entre um ponto neutro e o aterramento, ou entre a derivação de um enrolamento lateral do sistema de aterramento não eficaz de um transformador e o aterramento, para reduzir a tensão da fase de falha e deixá-la menor que a tensão contínua de queima de um arco de aterramento, atendendo, assim, aos requisitos de operação segura ininterrupta em longo prazo. os meios de operação e o método de controle para tal são simples e confiáveis e podem eliminar uma falha de aterramento monofásica instantânea, suprimir a corrente permanente de falha de aterramento monofásica, limitar a amplitude crescente da tensão da fase sem falha, reduzir o risco de quebra de isolamento da fase sem falha, reduzir os riscos de segurança de profissionais e equipamentos, evitar efetivamente quedas de energia e melhorar a confiabilidade e a segurança do fornecimento de energia.
BR112019025557-5A 2017-07-05 2018-07-04 Método seguro de operação para supressão do arco de redução de tensão da fase de falha de aterramento do sistema de aterramento não eficaz BR112019025557B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201710544978.8 2017-07-05
CN201710544978.8A CN107276097B (zh) 2017-07-05 2017-07-05 非有效接地系统接地故障相降压消弧的安全运行方法
PCT/CN2018/094419 WO2019007349A1 (zh) 2017-07-05 2018-07-04 非有效接地系统接地故障相降压消弧的安全运行方法

Publications (2)

Publication Number Publication Date
BR112019025557A2 true BR112019025557A2 (pt) 2020-06-16
BR112019025557B1 BR112019025557B1 (pt) 2024-03-05

Family

ID=60072259

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019025557-5A BR112019025557B1 (pt) 2017-07-05 2018-07-04 Método seguro de operação para supressão do arco de redução de tensão da fase de falha de aterramento do sistema de aterramento não eficaz

Country Status (7)

Country Link
US (1) US11368017B2 (pt)
EP (1) EP3605773B1 (pt)
CN (1) CN107276097B (pt)
AU (1) AU2018295937B2 (pt)
BR (1) BR112019025557B1 (pt)
RU (1) RU2727727C1 (pt)
WO (1) WO2019007349A1 (pt)

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CN111262231B (zh) * 2019-12-24 2022-09-02 长沙理工大学 非有效接地系统接地消弧装置、方法、设备和介质
CN111769534B (zh) * 2020-02-06 2022-06-07 云南电网有限责任公司电力科学研究院 一种电源接地故障电流补偿系统的电压调节方法和装置
CN211701481U (zh) * 2020-02-26 2020-10-16 安徽一天电气技术股份有限公司 消弧系统
CN111181146A (zh) * 2020-02-26 2020-05-19 安徽一天电气技术股份有限公司 消弧系统及方法
CN111181145A (zh) * 2020-02-26 2020-05-19 安徽一天电气技术股份有限公司 消弧系统及方法
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CN114142451B (zh) * 2021-11-19 2022-09-23 广东福德电子有限公司 配电网接地故障降压有源消弧电源及其控制方法
CN115144684A (zh) * 2022-05-07 2022-10-04 云南电网有限责任公司电力科学研究院 一种配电网动态零序阻抗选线保护方法及相关设备
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Also Published As

Publication number Publication date
US11368017B2 (en) 2022-06-21
EP3605773A1 (en) 2020-02-05
WO2019007349A1 (zh) 2019-01-10
EP3605773B1 (en) 2021-09-01
US20210126450A1 (en) 2021-04-29
CN107276097A (zh) 2017-10-20
BR112019025557B1 (pt) 2024-03-05
EP3605773A4 (en) 2020-10-07
CN107276097B (zh) 2018-10-09
AU2018295937B2 (en) 2020-09-24
AU2018295937A1 (en) 2019-10-31
RU2727727C1 (ru) 2020-07-23

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