GB586503A - Improvements in variable reactance chokes or transformers - Google Patents

Improvements in variable reactance chokes or transformers

Info

Publication number
GB586503A
GB586503A GB25200/44A GB2520044A GB586503A GB 586503 A GB586503 A GB 586503A GB 25200/44 A GB25200/44 A GB 25200/44A GB 2520044 A GB2520044 A GB 2520044A GB 586503 A GB586503 A GB 586503A
Authority
GB
United Kingdom
Prior art keywords
laminations
length
transformers
centre
bridge
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
GB25200/44A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB25200/44A priority Critical patent/GB586503A/en
Priority to US634585A priority patent/US2431860A/en
Publication of GB586503A publication Critical patent/GB586503A/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
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit

Landscapes

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

Abstract

586,503. Transformers and inductances. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. Dec. 15, 1944, No 25200. [Class 38 (ii)] A variable transformer or inductance has in its magnetic core an air gap of adjustable length between a fixed pole surface and the surface of a rotatable magnetic member, the two surfaces being of spiral outline so that as the length of the air gap changes it remains uniform over the surface area. In a double transformer suitable for use in a Scott-connected three-two phase system, the two sets of coupled coils 2, 4 and 3, 5 on separate flux paths of the laminated core 1 are each provided with leakage paths comprising fixed poles 7, 8, air gaps, and a rotatable laminated member 9. The fullsized laminations of member 9, half of one of which is shown by the solid line above the centre-line in Fig. 1, are interleaved alternately with the laminations of a bridge 6 which carries the member 9 on a spindle 10, and in the plane of each of the latter laminations, member 9 carries a further plate at top and bottom, one of which is shown by the solid line below the centre-line. Member 9 can be rotated by a handle 11 through a limited angle determined by the co-operation of these further plates and laminations of bridge 6, to vary the length of the air gaps, which owing to the spiral profiles of poles 7, 8 and of the faces of member 9 remain uniform over the gap. Specification 568,868 is referred to.
GB25200/44A 1944-12-15 1944-12-15 Improvements in variable reactance chokes or transformers Expired GB586503A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB25200/44A GB586503A (en) 1944-12-15 1944-12-15 Improvements in variable reactance chokes or transformers
US634585A US2431860A (en) 1944-12-15 1945-12-12 Variable reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25200/44A GB586503A (en) 1944-12-15 1944-12-15 Improvements in variable reactance chokes or transformers

Publications (1)

Publication Number Publication Date
GB586503A true GB586503A (en) 1947-03-20

Family

ID=10223849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25200/44A Expired GB586503A (en) 1944-12-15 1944-12-15 Improvements in variable reactance chokes or transformers

Country Status (2)

Country Link
US (1) US2431860A (en)
GB (1) GB586503A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151083A (en) * 1983-12-08 1985-07-10 Plessey Co Plc A transformer
CN108376605A (en) * 2017-01-30 2018-08-07 发那科株式会社 Multiphase iron core reactor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460921A (en) * 1946-08-17 1949-02-08 Nat Cylinder Gas Co Magnetic control system
US2460922A (en) * 1947-12-22 1949-02-08 Nat Cylinder Gas Co Magnetic core with variable air gap
US2630561A (en) * 1949-10-14 1953-03-03 Research Corp Dynamo transformer
US2901716A (en) * 1954-03-04 1959-08-25 Bendix Aviat Corp Variable inductor
US4098364A (en) * 1976-10-15 1978-07-04 Vsesojuzny Nauchno-Issledovatelsky Institut Stroitelnogo I Dorozhnogo Mashinostroenia Weight measuring apparatus
CN103354157A (en) * 2013-06-27 2013-10-16 宜兴市兴益特种变压器有限公司 Multi-tap Scott split-phase voltage-regulating magnetic voltage regulator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US735103A (en) * 1902-01-15 1903-08-04 Daniel Oscar Hull Constant-current transformer.
US1699142A (en) * 1928-04-28 1929-01-15 Gen Electric High-reactance transformer
US2305153A (en) * 1938-11-26 1942-12-15 Fries Eduard Adjustable transformer with high reactance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151083A (en) * 1983-12-08 1985-07-10 Plessey Co Plc A transformer
CN108376605A (en) * 2017-01-30 2018-08-07 发那科株式会社 Multiphase iron core reactor
CN108376605B (en) * 2017-01-30 2022-06-21 发那科株式会社 Multiphase iron core reactor

Also Published As

Publication number Publication date
US2431860A (en) 1947-12-02

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