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JPS6130227U - 3-phase grounded instrument transformer - Google Patents

3-phase grounded instrument transformer

Info

Publication number
JPS6130227U
JPS6130227U JP11512784U JP11512784U JPS6130227U JP S6130227 U JPS6130227 U JP S6130227U JP 11512784 U JP11512784 U JP 11512784U JP 11512784 U JP11512784 U JP 11512784U JP S6130227 U JPS6130227 U JP S6130227U
Authority
JP
Japan
Prior art keywords
instrument transformer
grounded instrument
phase grounded
phase
tap
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
JP11512784U
Other languages
Japanese (ja)
Other versions
JPH0314034Y2 (en
Inventor
正邦 浅野
稔 小浜
茂 陰野
Original Assignee
日新電機株式会社
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 日新電機株式会社 filed Critical 日新電機株式会社
Priority to JP11512784U priority Critical patent/JPS6130227U/en
Publication of JPS6130227U publication Critical patent/JPS6130227U/en
Application granted granted Critical
Publication of JPH0314034Y2 publication Critical patent/JPH0314034Y2/ja
Granted legal-status Critical Current

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  • Transformers For Measuring Instruments (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例を示す。 第２図はスコット結線変圧器と零相電圧検出回路を示す
。 第３図、第４図に零相電圧演算説明図を示す。 第５図、第６図は地絡時の計算結果を示す。 第７図は本考案のタップ付変成器による実測結果を示す
。 １・・・スコット結線変圧器、３・・・従来のα■、５
・・・三次巻線タップ付ＧＰＴ、７・・・制限抵抗、８
・・・３Ｖｏ検出計。FIG. 1 shows an embodiment of the invention. Figure 2 shows the Scott connection transformer and zero-sequence voltage detection circuit. FIGS. 3 and 4 are illustrations for explaining zero-phase voltage calculation. Figures 5 and 6 show the calculation results for ground faults. FIG. 7 shows actual measurement results using the tapped transformer of the present invention. 1...Scott connection transformer, 3...Conventional α■, 5
...GPT with tertiary winding tap, 7...Limiting resistor, 8
...3Vo detection meter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ３相接地形計器用変圧器に於いて、その３次巻線の巻線
比を１次側系統の各相対地アドミタンスに比例させたタ
ップを設け、タップの調整により零相電注を取り出すよ
うに構成した３相接地珍計器用変圧器。In a three-phase grounded instrument transformer, a tap is provided in which the turns ratio of the tertiary winding is proportional to each relative ground admittance of the primary system, and the zero-phase current is extracted by adjusting the tap. A three-phase grounded instrument transformer configured as follows.
JP11512784U 1984-07-27 1984-07-27 3-phase grounded instrument transformer Granted JPS6130227U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11512784U JPS6130227U (en) 1984-07-27 1984-07-27 3-phase grounded instrument transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11512784U JPS6130227U (en) 1984-07-27 1984-07-27 3-phase grounded instrument transformer

Publications (2)

Publication Number Publication Date
JPS6130227U true JPS6130227U (en) 1986-02-24
JPH0314034Y2 JPH0314034Y2 (en) 1991-03-28

Family

ID=30674112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11512784U Granted JPS6130227U (en) 1984-07-27 1984-07-27 3-phase grounded instrument transformer

Country Status (1)

Country Link
JP (1) JPS6130227U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011038931A (en) * 2009-08-12 2011-02-24 Kansai Electric Power Co Inc:The Ground capacitance measuring method of 6.6 kv non-grounded system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011038931A (en) * 2009-08-12 2011-02-24 Kansai Electric Power Co Inc:The Ground capacitance measuring method of 6.6 kv non-grounded system

Also Published As

Publication number Publication date
JPH0314034Y2 (en) 1991-03-28

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