JPH027739U - - Google Patents

Info

Publication number
JPH027739U
JPH027739U JP8219188U JP8219188U JPH027739U JP H027739 U JPH027739 U JP H027739U JP 8219188 U JP8219188 U JP 8219188U JP 8219188 U JP8219188 U JP 8219188U JP H027739 U JPH027739 U JP H027739U
Authority
JP
Japan
Prior art keywords
current
transformer
parallel
current transformer
banks
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP8219188U
Other languages
English (en)
Other versions
JPH0626037Y2 (ja
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 filed Critical
Priority to JP8219188U priority Critical patent/JPH0626037Y2/ja
Publication of JPH027739U publication Critical patent/JPH027739U/ja
Application granted granted Critical
Publication of JPH0626037Y2 publication Critical patent/JPH0626037Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例を示す単相回路図、第
２図は同実施例の要部を示す３相回路図、第３図
は同実施例の作用を示す回路図、第４図は従来例
を示す単相回路図である。 ＮＴ…ネツトワークトランス、１，１Ｒ，１Ｓ
，１Ｔ，１Ｎ…３次巻線付変流器、２，３…変流
器、４…差動継電器。

Claims (1)

  1. 【実用新案登録請求の範囲】 高圧側母線と低圧側母線との間に、各々トラン
    スを備えたバンクを複数並列に接続してなる受変
    電設備を地絡から保護する装置において、 各トランスの２次側のＲ，Ｓ，Ｔ及び中性相ラ
    インに夫々３次巻線付変流器１Ｒ，１Ｓ，１Ｔ，
    １Ｎを設置し、前記各トランスの中性点から分岐
    ラインを引き出して、それらを共通に接地すると
    共に、各分岐ラインには変流器２を設置し、 各バンク毎に、前記変流器の１Ｒ，１Ｓ，１Ｔ
    ，１Ｎの各２次巻線を互いに並列に接続すると共
    に、各３次巻線と前記変流器２とを縦列に接続し
    、 前記変流器２に流れる電流と前記３次巻線に流
    れる電流との間で差が生じたときに動作するよう
    に変流器２の両端間に差動継電器の動作コイルを
    設けたことを特徴とする地絡保護装置。
JP8219188U 1988-06-21 1988-06-21 地絡保護装置 Expired - Lifetime JPH0626037Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8219188U JPH0626037Y2 (ja) 1988-06-21 1988-06-21 地絡保護装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8219188U JPH0626037Y2 (ja) 1988-06-21 1988-06-21 地絡保護装置

Publications (2)

Publication Number Publication Date
JPH027739U true JPH027739U (ja) 1990-01-18
JPH0626037Y2 JPH0626037Y2 (ja) 1994-07-06

Family

ID=31306955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8219188U Expired - Lifetime JPH0626037Y2 (ja) 1988-06-21 1988-06-21 地絡保護装置

Country Status (1)

Country Link
JP (1) JPH0626037Y2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101225449B1 (ko) * 2012-09-19 2013-01-24 백용호 통합형 고저항 접지장치

Also Published As

Publication number Publication date
JPH0626037Y2 (ja) 1994-07-06

Similar Documents

Publication Publication Date Title
US10224145B2 (en) Earth surface potential and harmonic mitigating transformers
Bowles AC system and transformer representation for HV-DC transmission studies
JPH027739U (ja)
JP2985437B2 (ja) 地絡方向継電器の試験方法及びその回路
JP2983803B2 (ja) 漏電遮断装置
Stewart et al. Transformer winding selection associated with reconfiguration of existing double circuit line to six-phase operation
JPH027740U (ja)
US2066932A (en) Directional ground relay
US2515784A (en) Bus bar protection system with current polarized directional current relay
DE552331C (de) Einrichtung zum Selektivschutz fuer parallel an eine gemeinsame Leitung angeschlossene, mit Nullpunkten versehene Wicklungen
US2327190A (en) Protective arrangement for high voltage systems
JPH0426765B2 (ja)
UNIT SWITCHGEAR & PROTECTION
DE626342C (de) Schutzschaltung zum Schutze von ungeerdeten Mehrphasenwicklungen gegen Erd- und Windungsschluesse
JPS6325858Y2 (ja)
SU60765A1 (ru) Устройство дл защиты от однофазных замыканий на землю
JP2602299Y2 (ja) 碍子コンデンサに接続される零相電圧検出器
JPS6041532B2 (ja) 零相電圧導出装置
Breisky et al. Directional Ground Relay Protection of High-Tension Isolated Neutral Systems
DE571332C (de) Fernsteuerung von Resonanzrelais ueber bestehende Leitungsnetze durch tonfrequente Energien
SU904064A1 (ru) Устройство дл защиты от замыкани на землю в электрической сети с малым током замыкани на землю
SU514388A1 (ru) Токовый избиратель поврежденной фазы дл однофазного автоматического повторного включени (оапв) линии с двухсторонним питанием
Hentz Electrical Features of the Conowingo Generating Station and the Receiving Substations at Philadelphia
GB347616A (en) Means for and methods of protecting conductors in 4-phase and 2-phase circuits
JPH07236226A (ja) 地絡保護装置