GB359331A - Improvements in and relating to electric transformers - Google Patents

Improvements in and relating to electric transformers

Info

Publication number
GB359331A
GB359331A GB207031A GB207031A GB359331A GB 359331 A GB359331 A GB 359331A GB 207031 A GB207031 A GB 207031A GB 207031 A GB207031 A GB 207031A GB 359331 A GB359331 A GB 359331A
Authority
GB
United Kingdom
Prior art keywords
contact
current
electromagnet
transformer
contacts
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
GB207031A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB207031A priority Critical patent/GB359331A/en
Publication of GB359331A publication Critical patent/GB359331A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/54—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters
    • H02M7/58—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential
    • H02M7/62—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential with electromagnetically-operated vibrating contacts, e.g. chopper

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Toys (AREA)

Abstract

359,331. Transformers; converting. MARTENS, B., 12, Fõrberstrasse, Villingen, Baden, Germany. Jan. 21, 1931, No. 2070. [Class 38 (ii).] A transformer for supplying toys &c. from either A.C. or D.C. mains comprises a primary winding in two halves B, C through which, when D.C. is available, current is alternately passed by a vibrating switch 5, 6, 7 driven by an electromagnet E. When A.C. is available, the switch 1 is moved from contact 4 to contact 2 so that the transformer is energized by the winding B in series with an additional coil D. A condenser G is connected as shown to eliminate sparking during normal operation at the contacts 6, 7 and an additional condenser H is provided to eliminate sparking due to the breaking of shortcircuit current at the contact 6 on starting under load conditions. Modified switching arrangements are described in which in one case current in the electromagnet E is interrupted by a second vibrating contact, and in another case the contacts 6, 7 are mounted on a rocking arm electromagnetically driven.
GB207031A 1931-01-21 1931-01-21 Improvements in and relating to electric transformers Expired GB359331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB207031A GB359331A (en) 1931-01-21 1931-01-21 Improvements in and relating to electric transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB207031A GB359331A (en) 1931-01-21 1931-01-21 Improvements in and relating to electric transformers

Publications (1)

Publication Number Publication Date
GB359331A true GB359331A (en) 1931-10-22

Family

ID=9733045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB207031A Expired GB359331A (en) 1931-01-21 1931-01-21 Improvements in and relating to electric transformers

Country Status (1)

Country Link
GB (1) GB359331A (en)

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