GB979648A - A tap-changing transformer - Google Patents

A tap-changing transformer

Info

Publication number
GB979648A
GB979648A GB12662A GB12662A GB979648A GB 979648 A GB979648 A GB 979648A GB 12662 A GB12662 A GB 12662A GB 12662 A GB12662 A GB 12662A GB 979648 A GB979648 A GB 979648A
Authority
GB
United Kingdom
Prior art keywords
winding
impedance
point
resistance
choke
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
GB12662A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB979648A publication Critical patent/GB979648A/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
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • H01F27/2885—Shielding with shields or electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

979,648. Transformers. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Jan. 2, 1962 [Jan. 4, 1961], No. 126/62. Heading H1T. A transformer, in which the low voltage winding 15 is situated between the core 14 and the sectionalized winding 16, has a surge limiting circuit consisting of a choke 21 and a parallel impedance 22 mounted within the transformer tank and connected between the H.T. terminal on the tank and the innermost end 19 of the winding 16, the outer tapped section 17 of this winding being connected to the neutral line or point via the tapping switch 18. The impedance 22 may be a pure resistance and may be made of material, such as granular silicon carbide, which is characterized by a rapid fall in resistance during the initial part of the voltage surge. The impedance 22 may alternatively consist of an inductance and resistance in series and these components may be accommodated along with magnetic core members within the bore of the choke 21. Shield rings associated with the input section of the winding 16 may be connected to the point 20 instead of the point 19 as is usual.
GB12662A 1961-01-04 1962-01-02 A tap-changing transformer Expired GB979648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961L0037864 DE1239008B (en) 1961-01-04 1961-01-04 Power step transformer for higher series voltages

Publications (1)

Publication Number Publication Date
GB979648A true GB979648A (en) 1965-01-06

Family

ID=7268072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12662A Expired GB979648A (en) 1961-01-04 1962-01-02 A tap-changing transformer

Country Status (3)

Country Link
CH (1) CH399583A (en)
DE (1) DE1239008B (en)
GB (1) GB979648A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831125A (en) * 1973-06-06 1974-08-20 Emerson Electric Co Welding unit with improved transformer tap and switch construction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482788C (en) * 1925-02-14 1929-09-20 K A Sterzel Dr Ing Transformation device for operating glow cathode x-ray tubes
DE718671C (en) * 1934-07-03 1942-03-18 Aeg Tapping transformer for high power with concentric windings on the high voltage side
DE662598C (en) * 1934-12-14 1938-07-16 Siemens Schuckertwerke Akt Ges Transformer, especially for electrical welding, with a secondary current that can be adjusted using a regulating throttle

Also Published As

Publication number Publication date
CH399583A (en) 1965-09-30
DE1239008B (en) 1967-04-20

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