GB537930A - Means for obtaining a satisfactory curve shape of the current in d.c. saturated inductances - Google Patents

Means for obtaining a satisfactory curve shape of the current in d.c. saturated inductances

Info

Publication number
GB537930A
GB537930A GB2881/40A GB288140A GB537930A GB 537930 A GB537930 A GB 537930A GB 2881/40 A GB2881/40 A GB 2881/40A GB 288140 A GB288140 A GB 288140A GB 537930 A GB537930 A GB 537930A
Authority
GB
United Kingdom
Prior art keywords
current
inductances
saturated
obtaining
feb
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
GB2881/40A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB537930A publication Critical patent/GB537930A/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
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Networks Using Active Elements (AREA)

Abstract

537,930. Magnetic amplifiers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 15, 1940, No. 2881. Convention date, Feb. 13, 1939. [Class 40 (iv)] [Also in Group XXXV] In order to avoid excessive distortion of the wave form of the output A.C. in a magnetic amplifier in which the input is fed to a pair of D.C. windings on a saturable core so as to control the current in a pair of A.C. windings closely coupled thereto, the reactance value of the inductance in the D.C. circuit measured at the frequency of the second harmonic is made to lie between one-third and twice the value i a .e a /i d <SP>2</SP> where i a and e a are the rated current and voltage on the A.C. side and i d is the direct current corresponding to i a . Supplementary inductances associated with condensers may be provided on the D.C. side to achieve the required conditions.
GB2881/40A 1939-02-13 1940-02-15 Means for obtaining a satisfactory curve shape of the current in d.c. saturated inductances Expired GB537930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE537930X 1939-02-13

Publications (1)

Publication Number Publication Date
GB537930A true GB537930A (en) 1941-07-14

Family

ID=20311529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2881/40A Expired GB537930A (en) 1939-02-13 1940-02-15 Means for obtaining a satisfactory curve shape of the current in d.c. saturated inductances

Country Status (2)

Country Link
DE (1) DE906830C (en)
GB (1) GB537930A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767371A (en) * 1952-06-18 1956-10-16 Gen Electric Saturable reactor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767371A (en) * 1952-06-18 1956-10-16 Gen Electric Saturable reactor

Also Published As

Publication number Publication date
DE906830C (en) 1954-03-18

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