JPS55117218A - Three-phase transformer - Google Patents

Three-phase transformer

Info

Publication number
JPS55117218A
JPS55117218A JP2447679A JP2447679A JPS55117218A JP S55117218 A JPS55117218 A JP S55117218A JP 2447679 A JP2447679 A JP 2447679A JP 2447679 A JP2447679 A JP 2447679A JP S55117218 A JPS55117218 A JP S55117218A
Authority
JP
Japan
Prior art keywords
windings
main
phase
primary
auxiliary
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
JP2447679A
Other languages
Japanese (ja)
Other versions
JPS6048082B2 (en
Inventor
Keizo Inagaki
Yoshiaki Inui
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP54024476A priority Critical patent/JPS6048082B2/en
Publication of JPS55117218A publication Critical patent/JPS55117218A/en
Publication of JPS6048082B2 publication Critical patent/JPS6048082B2/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

PURPOSE:To reinforce a trouble current suppression function, by disposing main windings off each other and prescribing the numbers of turns of the main and auxiliary windings when providing the main primary and secondary windings and two auxiliary windings around three-phase core legs and connecting the main windings in series with the different-phase auxiliary windings. CONSTITUTION:A three-phase transformer is composed of main primary windings U1, V1 and W1, main secondary windings u1, v1 and w1, auxiliary secondary windings u2, v2, w2, u3, v3 and w3, primary terminals U, V and W, secondary terminals u, v and w, etc. The windings of the same phase are provided around the core leg of the same phase. The windings U1, V1 and W1 are star-connected to one another. The windings u1, v1 and w1 are star-connected to the two-different-phase auxiliary windings v2 and w3, w2 and u3 and u2 and v3. The main primary windings are placed off the main secondary windings to increase the leakage impedance. The numbers of the winding turns are prescribed by the formulae where Z denotes the load impedance, cosphi denotes the load power-factor and X denotes the primary and secondary leakage impedance.
JP54024476A 1979-03-05 1979-03-05 3 phase transformer equipment Expired JPS6048082B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54024476A JPS6048082B2 (en) 1979-03-05 1979-03-05 3 phase transformer equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54024476A JPS6048082B2 (en) 1979-03-05 1979-03-05 3 phase transformer equipment

Publications (2)

Publication Number Publication Date
JPS55117218A true JPS55117218A (en) 1980-09-09
JPS6048082B2 JPS6048082B2 (en) 1985-10-25

Family

ID=12139215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54024476A Expired JPS6048082B2 (en) 1979-03-05 1979-03-05 3 phase transformer equipment

Country Status (1)

Country Link
JP (1) JPS6048082B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100740349B1 (en) 2005-08-01 2007-07-19 염승엽 3 phase power saving and harmony filter transformer
JP2007228944A (en) * 2006-03-03 2007-09-13 Mitsubishi Agricult Mach Co Ltd Reaping part of reaping harvester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100740349B1 (en) 2005-08-01 2007-07-19 염승엽 3 phase power saving and harmony filter transformer
JP2007228944A (en) * 2006-03-03 2007-09-13 Mitsubishi Agricult Mach Co Ltd Reaping part of reaping harvester

Also Published As

Publication number Publication date
JPS6048082B2 (en) 1985-10-25

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