DE223773C - - Google Patents

Info

Publication number
DE223773C
DE223773C DENDAT223773D DE223773DA DE223773C DE 223773 C DE223773 C DE 223773C DE NDAT223773 D DENDAT223773 D DE NDAT223773D DE 223773D A DE223773D A DE 223773DA DE 223773 C DE223773 C DE 223773C
Authority
DE
Germany
Prior art keywords
resonance
relay
relays
interruption
shunted
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.)
Active
Application number
DENDAT223773D
Other languages
German (de)
English (en)
Publication of DE223773C publication Critical patent/DE223773C/de
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • 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)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
DENDAT223773D Active DE223773C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE223773C true DE223773C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=484563

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT223773D Active DE223773C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE223773C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602853A (en) * 1947-08-07 1952-07-08 Bell Telephone Labor Inc Selective signaling system
DE956072C (de) * 1952-03-12 1957-01-10 Landis & Gyr Ag Installationsselbstschalter mit Differentialrelais
DE1023813B (de) * 1953-02-28 1958-02-06 Wilhelm Engels Elektrischer Schutzschalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602853A (en) * 1947-08-07 1952-07-08 Bell Telephone Labor Inc Selective signaling system
DE956072C (de) * 1952-03-12 1957-01-10 Landis & Gyr Ag Installationsselbstschalter mit Differentialrelais
DE1023813B (de) * 1953-02-28 1958-02-06 Wilhelm Engels Elektrischer Schutzschalter

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