GB385346A - An improved resonance relay according to the ferraris principle - Google Patents

An improved resonance relay according to the ferraris principle

Info

Publication number
GB385346A
GB385346A GB22823/31A GB2282331A GB385346A GB 385346 A GB385346 A GB 385346A GB 22823/31 A GB22823/31 A GB 22823/31A GB 2282331 A GB2282331 A GB 2282331A GB 385346 A GB385346 A GB 385346A
Authority
GB
United Kingdom
Prior art keywords
superimposed
winding
mains
induction
frequency
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
GB22823/31A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr 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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB385346A publication Critical patent/GB385346A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by ac
    • H01H51/32—Frequency relays; Mechanically-tuned relays

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

385,346. Induction relays. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Aug. 12, 1931, No. 22823. Convention date, Sept. 2, 1930. [Class 38 (v).] An induction relay which is operable in accordance with a particular frequency of current superimposed on the mains has a series resonant circuit 7 consisting of a condenser 9 and inductance 11 energized from the supply, the winding 11 being placed on the return limb 4 of a two-limbed core 1 in the air gap 5 of which is placed the induction disc 6. On one of the limbs 2 is placed a winding 12 inductively related to the winding 11 and tuned by a condenser 11 to the superimposed frequency, the second limb 3 being unwound. The interaction of the fluxes produced in windings 11, 12 cause the rotation of the disc when current of the predetermined frequency is superimposed on the mains. The relay may be employed in conjunction with switches, multiple-tariff meters, or electric clocks to perform operations therein in response to currents of a predetermined frequency superimposed on supply mains.
GB22823/31A 1930-09-02 1931-08-12 An improved resonance relay according to the ferraris principle Expired GB385346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH385346X 1930-09-02

Publications (1)

Publication Number Publication Date
GB385346A true GB385346A (en) 1932-12-29

Family

ID=4513789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22823/31A Expired GB385346A (en) 1930-09-02 1931-08-12 An improved resonance relay according to the ferraris principle

Country Status (3)

Country Link
DE (1) DE576778C (en)
FR (1) FR721373A (en)
GB (1) GB385346A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746744C (en) * 1934-06-02 1944-08-23 Bbc Brown Boveri & Cie Device for frequency control by means of an electrical controller
US2483408A (en) * 1945-03-26 1949-10-04 Standard Telephones Cables Ltd Relay circuit
US2785873A (en) * 1950-08-19 1957-03-19 Milwaukee Gas Specialty Co Electromagnetic control device

Also Published As

Publication number Publication date
FR721373A (en) 1932-03-02
DE576778C (en) 1933-05-18

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