GB516177A - Improvements in or relating to three-phase electric transformers or choking coils - Google Patents

Improvements in or relating to three-phase electric transformers or choking coils

Info

Publication number
GB516177A
GB516177A GB18577/38A GB1857738A GB516177A GB 516177 A GB516177 A GB 516177A GB 18577/38 A GB18577/38 A GB 18577/38A GB 1857738 A GB1857738 A GB 1857738A GB 516177 A GB516177 A GB 516177A
Authority
GB
United Kingdom
Prior art keywords
winding
transformers
delta
windings
zag
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.)
Expired
Application number
GB18577/38A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB516177A publication Critical patent/GB516177A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/343—Preventing or reducing surge voltages; oscillations
    • H01F27/345—Preventing or reducing surge voltages; oscillations using auxiliary conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

516,177. Transformers; inductances. SIEMENS SCHUCKERTWERKE AKT. - GES. June 22, 1938, No. 18577. Convention date, Aug. 10, 1937. [Class 38 (ii)] In a three - phase transformer or choking- coil with isolated neutral, voltage oscillation of the neutral point due to incoming surges is damped by providing on the core an open delta winding 5 closed through a resistance 6. The invention may be applied to transformers or chokes with windings in star, zig-zag, or star-ziz-zag on a common or three separate cores, and in the case of a transformer in which one of the main windings is delta-connected, the auxiliary open-delta winding may. be disposed in the space between the two main windings and may be embedded in an insulating cylinder, Fig. 5 (not shown). The auxiliary winding may, however, be in the form of a flat metal strip laid directly on the turns of the main winding.
GB18577/38A 1937-08-10 1938-06-22 Improvements in or relating to three-phase electric transformers or choking coils Expired GB516177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE516177X 1937-08-10

Publications (1)

Publication Number Publication Date
GB516177A true GB516177A (en) 1939-12-27

Family

ID=6549167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18577/38A Expired GB516177A (en) 1937-08-10 1938-06-22 Improvements in or relating to three-phase electric transformers or choking coils

Country Status (1)

Country Link
GB (1) GB516177A (en)

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