NO944661L - Transformer with frame-shaped plate stack - Google Patents

Transformer with frame-shaped plate stack

Info

Publication number
NO944661L
NO944661L NO944661A NO944661A NO944661L NO 944661 L NO944661 L NO 944661L NO 944661 A NO944661 A NO 944661A NO 944661 A NO944661 A NO 944661A NO 944661 L NO944661 L NO 944661L
Authority
NO
Norway
Prior art keywords
transformer
voltage
free space
laminated core
frame
Prior art date
Application number
NO944661A
Other languages
Norwegian (no)
Other versions
NO944661D0 (en
NO306084B1 (en
Inventor
Jian Xie
Original Assignee
Aeg Westinghouse Transport
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 Aeg Westinghouse Transport filed Critical Aeg Westinghouse Transport
Publication of NO944661D0 publication Critical patent/NO944661D0/en
Publication of NO944661L publication Critical patent/NO944661L/en
Publication of NO306084B1 publication Critical patent/NO306084B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Rectifiers (AREA)

Abstract

The invention relates to a transformer having a laminated core in the form of a frame, into whose central free space windings project which are grouped as n pairs, each composed of an inner high-voltage winding and an outer low-voltage winding located above it, around two of the opposite limbs of the laminated core, in particular for parallel operation with a plurality of supplying four-quadrant controllers. When a 16 2/3 Hz AC voltage is produced from a DC voltage by means of pulsed four-quadrant controllers, interfering current harmonics occur. In order to reduce the harmonics in a simple manner - that is to say without increasing the transformer costs, the transformer volume or the transformer weight - it is proposed according to the invention that one or more cruciform intermediate yokes (8) be inserted into the central free space (7) in the laminated core (6), which yokes divide the free space (7) into windows (9) for the individual winding pairs (1/3) in which these are inserted, and that the high-voltage windings (3) be connected in series. <IMAGE>
NO944661A 1993-12-03 1994-12-02 Transformer with frame-shaped plate stack NO306084B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4341721A DE4341721C2 (en) 1993-12-03 1993-12-03 Transformer with a frame-shaped laminated core

Publications (3)

Publication Number Publication Date
NO944661D0 NO944661D0 (en) 1994-12-02
NO944661L true NO944661L (en) 1995-06-06
NO306084B1 NO306084B1 (en) 1999-09-13

Family

ID=6504400

Family Applications (1)

Application Number Title Priority Date Filing Date
NO944661A NO306084B1 (en) 1993-12-03 1994-12-02 Transformer with frame-shaped plate stack

Country Status (4)

Country Link
EP (1) EP0656637B1 (en)
AT (1) ATE149269T1 (en)
DE (2) DE4341721C2 (en)
NO (1) NO306084B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745812A1 (en) * 1997-10-16 1999-04-22 Asea Brown Boveri Transformer with frame-shaped plate packet for power supply system
CN106128720A (en) * 2016-08-30 2016-11-16 吴江变压器有限公司 A kind of matrix loop structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR704640A (en) * 1929-10-19 1931-05-22 Thomson Houston Comp Francaise Improvements made to electrical transformers
DE631785C (en) * 1931-04-08 1936-06-26 Emil Wirz Dr Ing Single-phase core or shell transformer
DE695233C (en) * 1936-10-02 1940-08-20 Licht Und Kraft Akt Ges Three-phase transformer, especially for supplying electricity to electrical welding equipment
CH247752A (en) * 1944-07-24 1947-03-31 Haefely & Cie Ag Emil Single-phase core type current transformer for high line voltages.
DE1110299B (en) * 1959-12-23 1961-07-06 Siemens Reiniger Werke Ag Three-phase high voltage transformer for X-ray apparatus
US3287682A (en) * 1960-05-18 1966-11-22 Gen Electric Core insulation for protection against impulse voltage

Also Published As

Publication number Publication date
EP0656637A1 (en) 1995-06-07
ATE149269T1 (en) 1997-03-15
DE4341721C2 (en) 1996-02-08
NO944661D0 (en) 1994-12-02
NO306084B1 (en) 1999-09-13
DE4341721A1 (en) 1995-06-08
EP0656637B1 (en) 1997-02-26
DE59401857D1 (en) 1997-04-03

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