JPS55121619A - Three-phase on-load tap-changing transformer - Google Patents

Three-phase on-load tap-changing transformer

Info

Publication number
JPS55121619A
JPS55121619A JP2871779A JP2871779A JPS55121619A JP S55121619 A JPS55121619 A JP S55121619A JP 2871779 A JP2871779 A JP 2871779A JP 2871779 A JP2871779 A JP 2871779A JP S55121619 A JPS55121619 A JP S55121619A
Authority
JP
Japan
Prior art keywords
tap
winding
coarse
changer
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.)
Granted
Application number
JP2871779A
Other languages
Japanese (ja)
Other versions
JPS6036086B2 (en
Inventor
Sumio Umekawa
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 JP2871779A priority Critical patent/JPS6036086B2/en
Publication of JPS55121619A publication Critical patent/JPS55121619A/en
Publication of JPS6036086B2 publication Critical patent/JPS6036086B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To lower the potential to ground of a dislocation changer and a tap selector, to decrease the weight of winding and to lessen the loss by connecting coarse tap winding, close tap winding and an on-load tap changer in specific composition. CONSTITUTION:Main winding 1, coarse tap winding 2 and close tap winding 3 are wound on the same iron-core 4, and main winding 1 is star-connected to an output terminal, and coarse tap winding 2 to the coarse tap winding of other phase, thus obtaining a neutral point 0. Each tap of coarse tap winding 2 is each connected to fixed contact P1Q1-P4Q4 of a dislocation changer, and each tap of close tap winding 3 and a movable contact Qo are to fixed contacts T1-TN of a tap selector. If 1 tap voltage is eV, 1 tap voltage of coarse tap winding is NeV, and the number of total tap points is 4N points at a maximum. Thus, the voltage to ground of the dislocation changer point is (3N-1) eV at a maximum at contact P4Q4, thereby enabling to decrease the voltage to ground. Hence, main winding is reduced and the weight can be decreased.
JP2871779A 1979-03-14 1979-03-14 Three-phase on-load tap-changing transformer Expired JPS6036086B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2871779A JPS6036086B2 (en) 1979-03-14 1979-03-14 Three-phase on-load tap-changing transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2871779A JPS6036086B2 (en) 1979-03-14 1979-03-14 Three-phase on-load tap-changing transformer

Publications (2)

Publication Number Publication Date
JPS55121619A true JPS55121619A (en) 1980-09-18
JPS6036086B2 JPS6036086B2 (en) 1985-08-19

Family

ID=12256188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2871779A Expired JPS6036086B2 (en) 1979-03-14 1979-03-14 Three-phase on-load tap-changing transformer

Country Status (1)

Country Link
JP (1) JPS6036086B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000035073A1 (en) * 1998-12-04 2000-06-15 Sansone Camillo Di Sansone Camillo An apparatus for controlling and managing electrically-driven users

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000035073A1 (en) * 1998-12-04 2000-06-15 Sansone Camillo Di Sansone Camillo An apparatus for controlling and managing electrically-driven users

Also Published As

Publication number Publication date
JPS6036086B2 (en) 1985-08-19

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