JP2015032719A5 - - Google Patents

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Publication number
JP2015032719A5
JP2015032719A5 JP2013161932A JP2013161932A JP2015032719A5 JP 2015032719 A5 JP2015032719 A5 JP 2015032719A5 JP 2013161932 A JP2013161932 A JP 2013161932A JP 2013161932 A JP2013161932 A JP 2013161932A JP 2015032719 A5 JP2015032719 A5 JP 2015032719A5
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JP
Japan
Prior art keywords
transformer
winding
series
conversion
secondary winding
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.)
Pending
Application number
JP2013161932A
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Japanese (ja)
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JP2015032719A (en
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Publication date
Application filed filed Critical
Priority to JP2013161932A priority Critical patent/JP2015032719A/en
Priority claimed from JP2013161932A external-priority patent/JP2015032719A/en
Publication of JP2015032719A publication Critical patent/JP2015032719A/en
Publication of JP2015032719A5 publication Critical patent/JP2015032719A5/ja
Pending legal-status Critical Current

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Claims (1)

交流電力系統と電力変換器が変換用変圧器を介して接続され、前記変換用変圧器と接続される直列変圧器及び前記変換用変圧器の励磁電流を検出する電流検出器を備え、
前記直列変圧器は、前記変換用変圧器の一次巻線及び二次巻線のそれぞれに直列に接続された巻線と、該巻線に接続されると共に、前記電流検出器に接続された検出用巻線とを有し、前記変換用変圧器の一次巻線及び二次巻線の巻数比と、この変換用変圧器の一次巻線及び二次巻線のそれぞれに直列に接続された前記直列変圧器のそれぞれの巻線の巻数比とを等しく構成したことを特徴とする変換用変圧器の励磁電流検出装置。 AC power system and the power converter is connected via a conversion variable voltage divider, comprising a current detector for detecting the exciting current of the series transformer and the converter transformer connected to said converter transformer,
The series transformer includes a winding connected in series to each of a primary winding and a secondary winding of the conversion transformer, and a detection connected to the winding and the current detector. The winding ratio of the primary winding and the secondary winding of the conversion transformer, and the primary winding and the secondary winding connected in series to the primary winding and the secondary winding of the conversion transformer, respectively. An exciting current detecting device for a transformer for conversion, characterized in that the turns ratio of each winding of the series transformer is equal.
JP2013161932A 2013-08-05 2013-08-05 Excitation current detection device for transformer for conversion Pending JP2015032719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013161932A JP2015032719A (en) 2013-08-05 2013-08-05 Excitation current detection device for transformer for conversion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013161932A JP2015032719A (en) 2013-08-05 2013-08-05 Excitation current detection device for transformer for conversion

Publications (2)

Publication Number Publication Date
JP2015032719A JP2015032719A (en) 2015-02-16
JP2015032719A5 true JP2015032719A5 (en) 2016-06-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013161932A Pending JP2015032719A (en) 2013-08-05 2013-08-05 Excitation current detection device for transformer for conversion

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JP (1) JP2015032719A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109066586B (en) * 2018-09-19 2020-03-20 南京南瑞继保电气有限公司 Longitudinal zero-sequence differential protection method and device for magnetically balanced series transformer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03169271A (en) * 1989-11-27 1991-07-22 Hitachi Ltd Detection circuit for eccentric magnetization of inverter transformer
JPH0472888U (en) * 1990-11-02 1992-06-26
JP3083214B2 (en) * 1992-12-08 2000-09-04 株式会社東芝 Transformer excitation current detection device
JPH08317562A (en) * 1995-05-22 1996-11-29 Nissin Electric Co Ltd System interconnection
JP3518260B2 (en) * 1997-07-18 2004-04-12 株式会社日立製作所 Transformer, DC bias detection element of transformer, and DC bias evaluation device
JP5640842B2 (en) * 2011-03-17 2014-12-17 富士電機株式会社 Power conversion apparatus and control method thereof

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