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GB823631A - Current limiting device for safeguarding circuit elements from excessive starting currents - Google Patents

Current limiting device for safeguarding circuit elements from excessive starting currents

Info

Publication number
GB823631A
GB823631A GB10369/58A GB1036958A GB823631A GB 823631 A GB823631 A GB 823631A GB 10369/58 A GB10369/58 A GB 10369/58A GB 1036958 A GB1036958 A GB 1036958A GB 823631 A GB823631 A GB 823631A
Authority
GB
United Kingdom
Prior art keywords
resistance
metal
circuit elements
current limiting
limiting device
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
GB10369/58A
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
Priority to US562068A priority Critical patent/US2914637A/en
Application filed by Individual filed Critical Individual
Priority to GB10369/58A priority patent/GB823631A/en
Publication of GB823631A publication Critical patent/GB823631A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/544—Protection of filaments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/504—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by thermal means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/023—Current limitation using superconducting elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

823,631. Thermal switches. WUERTH, R. C. April 1, 1958, No. 10369/58. Class 38 (5). [Also in Group XL (c)] A switch for initially limiting the current to the filaments of electron tubes or electric light bulbs, comprises a resistance 10 arranged to be connected in series with the filaments, and supporting a bi-metal strip 14 connected thereto at 12. The bi-metal carries a contact 17 which, as the resistance heats up and deflects the bimetal, engages a fixed contact 18 connected to the other end of the resistance at 13, thereby short-circuiting the resistance. The resulting current through the bi-metal is sufficient to keep it deflected. The resistance is preferably embedded in a refractory body 11, as shown, and the bi-metal may be replaced by a bellows.
GB10369/58A 1956-01-30 1958-04-01 Current limiting device for safeguarding circuit elements from excessive starting currents Expired GB823631A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US562068A US2914637A (en) 1956-01-30 1956-01-30 System and device for prolonging the life of current energized filamentary elements
GB10369/58A GB823631A (en) 1958-04-01 1958-04-01 Current limiting device for safeguarding circuit elements from excessive starting currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10369/58A GB823631A (en) 1958-04-01 1958-04-01 Current limiting device for safeguarding circuit elements from excessive starting currents

Publications (1)

Publication Number Publication Date
GB823631A true GB823631A (en) 1959-11-18

Family

ID=9966577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10369/58A Expired GB823631A (en) 1956-01-30 1958-04-01 Current limiting device for safeguarding circuit elements from excessive starting currents

Country Status (1)

Country Link
GB (1) GB823631A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137831A (en) * 1983-04-01 1984-10-10 Rca Corp Cold start surge current limiting system for a hydrazine thruster augmentation heater
GB2144001A (en) * 1983-05-21 1985-02-20 Hayashibara Ken Power supply circuit
GB2144281A (en) * 1983-06-16 1985-02-27 Hayashibara Ken A device for regulating ac current
GB2144593A (en) * 1983-06-14 1985-03-06 Hayashibara Ken A circuit for reducing surge current

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137831A (en) * 1983-04-01 1984-10-10 Rca Corp Cold start surge current limiting system for a hydrazine thruster augmentation heater
DE3411965A1 (en) * 1983-04-01 1984-10-18 Rca Corp., New York, N.Y. COLD START INLET CURRENT LIMITING DEVICE FOR A HYDRAZINE REPLACING MOTOR AUXILIARY HEATER
US4523429A (en) * 1983-04-01 1985-06-18 Rca Corporation Cold start surge current limiting system for a hydrazine thruster augmentation heater
GB2144001A (en) * 1983-05-21 1985-02-20 Hayashibara Ken Power supply circuit
GB2144593A (en) * 1983-06-14 1985-03-06 Hayashibara Ken A circuit for reducing surge current
GB2144281A (en) * 1983-06-16 1985-02-27 Hayashibara Ken A device for regulating ac current

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