GB1528130A - Variable transformers - Google Patents

Variable transformers

Info

Publication number
GB1528130A
GB1528130A GB45400/75A GB4540075A GB1528130A GB 1528130 A GB1528130 A GB 1528130A GB 45400/75 A GB45400/75 A GB 45400/75A GB 4540075 A GB4540075 A GB 4540075A GB 1528130 A GB1528130 A GB 1528130A
Authority
GB
United Kingdom
Prior art keywords
winding
control
turns
external connection
tapped
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
GB45400/75A
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.)
Transformatoren Union AG
Original Assignee
Transformatoren Union 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 Transformatoren Union AG filed Critical Transformatoren Union AG
Publication of GB1528130A publication Critical patent/GB1528130A/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
    • 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)
  • Coils Of Transformers For General Uses (AREA)

Abstract

1528130 Transformers TRANSFORMATOREN UNION AG 31 Oct 1975 [2 Nov 1974] 45400/75 Heading HIT In a variable transformer having a secondary winding comprising a main winding and a tapped winding, protection against voltage surges is effected by a capacitative control winding wound adjacent a secondary winding and comprising two equal parts joined by an external connection. Fig. 7 shows a development of a helical winding 1 alongside which a control winding 2 is wound. For every five turns of the main winding there are two control winding paths, each of which extends over 2¢ turns, with inner ends 4 being insulated from each other and outer ends being joined by a conductor 3. Figs. 1-6 (not shown) indicate diagramatically the association of control windings with various arrangements of main winding layers. Fig. 8 (not shown) discloses control windings applied to a tapped winding. Figs. 9 and 10 (not shown) show arrangements where the control winding parts each comprise a single turn, and the external connection joins a turn at the high voltage end with one at the low voltage end.
GB45400/75A 1974-11-02 1975-10-31 Variable transformers Expired GB1528130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742452140 DE2452140A1 (en) 1974-11-02 1974-11-02 CAPACITIVE CONTROLLED LAYER WRAPPING

Publications (1)

Publication Number Publication Date
GB1528130A true GB1528130A (en) 1978-10-11

Family

ID=5929922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45400/75A Expired GB1528130A (en) 1974-11-02 1975-10-31 Variable transformers

Country Status (6)

Country Link
DE (1) DE2452140A1 (en)
DK (1) DK486775A (en)
FR (1) FR2290014A1 (en)
GB (1) GB1528130A (en)
NL (1) NL7512772A (en)
SE (1) SE401419B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE425874B (en) * 1980-07-08 1982-11-15 Asea Ab Control winding

Also Published As

Publication number Publication date
FR2290014B3 (en) 1979-09-14
SE401419B (en) 1978-05-02
DK486775A (en) 1976-05-03
DE2452140A1 (en) 1976-05-06
NL7512772A (en) 1976-05-04
FR2290014A1 (en) 1976-05-28
SE7512193L (en) 1976-05-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee