JPS57178310A - Three phase autotransformer - Google Patents

Three phase autotransformer

Info

Publication number
JPS57178310A
JPS57178310A JP56062638A JP6263881A JPS57178310A JP S57178310 A JPS57178310 A JP S57178310A JP 56062638 A JP56062638 A JP 56062638A JP 6263881 A JP6263881 A JP 6263881A JP S57178310 A JPS57178310 A JP S57178310A
Authority
JP
Japan
Prior art keywords
winding
phase
built
section
voltage
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
JP56062638A
Other languages
Japanese (ja)
Inventor
Masaru Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56062638A priority Critical patent/JPS57178310A/en
Publication of JPS57178310A publication Critical patent/JPS57178310A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers

Abstract

PURPOSE:To contrive compactness and light weight for expanding the capacity of the limit to transformer transportation and to obtain the constant voltage of low-voltage tertiary windings and the freedom of delta and star connections by a method wherein the built-in winding in each phase is composed of delta connection in isolating a LVR section with tertiary winding from a main transformer section. CONSTITUTION:The main transformer 11 section in each phase is composed by winding a built-in winding 10 with a series winding 14 and shunt winding 15 on at least one iron core leg. Meanwhile, each voltage regulator 12 at on-load is composed by winding a tap winding 6, exciting winding 7, and low-voltage tertiary winding 8 on at least one iron core leg. In this way, as the built-in winding 10 in each phase is composed of delta connection, a problem on the third harmonic wave is solved and no zero-phase current flows to the outside even if operation is made by the main transformer 11 in each phase only. Accordingly, no induction fault to communication lines occurs. As zero-phase impedance is also decreased, fault current becomes high. Therefore, detection sensitivity will not decrease.
JP56062638A 1981-04-27 1981-04-27 Three phase autotransformer Pending JPS57178310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56062638A JPS57178310A (en) 1981-04-27 1981-04-27 Three phase autotransformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56062638A JPS57178310A (en) 1981-04-27 1981-04-27 Three phase autotransformer

Publications (1)

Publication Number Publication Date
JPS57178310A true JPS57178310A (en) 1982-11-02

Family

ID=13206061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56062638A Pending JPS57178310A (en) 1981-04-27 1981-04-27 Three phase autotransformer

Country Status (1)

Country Link
JP (1) JPS57178310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456298B1 (en) * 2003-06-24 2004-11-10 이성호 3 phases 3 lines transformer
CN103559991A (en) * 2013-09-02 2014-02-05 昆山宝誉斯电源科技有限公司 Side-extended-triangle-shaped autotransformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456298B1 (en) * 2003-06-24 2004-11-10 이성호 3 phases 3 lines transformer
CN103559991A (en) * 2013-09-02 2014-02-05 昆山宝誉斯电源科技有限公司 Side-extended-triangle-shaped autotransformer

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