ZA734363B - An improvement in or relating to thermally responsive electrical device - Google Patents

An improvement in or relating to thermally responsive electrical device

Info

Publication number
ZA734363B
ZA734363B ZA734363A ZA734363A ZA734363B ZA 734363 B ZA734363 B ZA 734363B ZA 734363 A ZA734363 A ZA 734363A ZA 734363 A ZA734363 A ZA 734363A ZA 734363 B ZA734363 B ZA 734363B
Authority
ZA
South Africa
Prior art keywords
relating
improvement
electrical device
thermally responsive
responsive electrical
Prior art date
Application number
ZA734363A
Inventor
P Anderson
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ZA734363B publication Critical patent/ZA734363B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H2071/167—Multiple bimetals working in parallel together, e.g. laminated together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
ZA734363A 1972-06-29 1973-06-26 An improvement in or relating to thermally responsive electrical device ZA734363B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26727272A 1972-06-29 1972-06-29

Publications (1)

Publication Number Publication Date
ZA734363B true ZA734363B (en) 1974-06-26

Family

ID=23018076

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA734363A ZA734363B (en) 1972-06-29 1973-06-26 An improvement in or relating to thermally responsive electrical device

Country Status (11)

Country Link
US (1) US3792401A (en)
AU (1) AU476175B2 (en)
BE (1) BE801424A (en)
BR (1) BR7304657D0 (en)
CA (1) CA977805A (en)
CH (1) CH570035A5 (en)
DE (2) DE2329642A1 (en)
ES (1) ES416155A1 (en)
FR (1) FR2191243B1 (en)
GB (1) GB1431576A (en)
ZA (1) ZA734363B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047140A (en) * 1975-12-23 1977-09-06 Westinghouse Electric Corporation Thermal overload relay
GB1536197A (en) * 1976-02-25 1978-12-20 Cutler Hammer World Trade Inc Electrical overload switching relay
JPS5942927B2 (en) * 1977-12-29 1984-10-18 富士電機株式会社 Thermal overload relay
GB1595046A (en) * 1978-04-25 1981-08-05 Sprecher & Schuh Ag Bimetallic thermo-release
US4270113A (en) * 1979-04-06 1981-05-26 Westinghouse Electric Corp. Thermal overload relay
FR2516300A1 (en) * 1981-11-09 1983-05-13 Telemecanique Electrique DIFFERENTIAL DEVICE FOR A POLYPHASE THERMAL RELAY
US4528539A (en) * 1984-06-28 1985-07-09 Eaton Corporation Reduced-size thermal overload relay
JPH0347242Y2 (en) * 1985-03-26 1991-10-08
DE8619694U1 (en) * 1986-07-23 1986-09-18 Siemens AG, 1000 Berlin und 8000 München Overload relay
DE19727732B4 (en) * 1997-06-30 2009-08-06 Abb Ag Combination switchgear
JP4045709B2 (en) * 1999-04-02 2008-02-13 富士電機機器制御株式会社 Thermal overload trip device for circuit breaker
JP4186414B2 (en) * 2000-11-29 2008-11-26 富士電機機器制御株式会社 Instantaneous trip circuit breaker
JP4186415B2 (en) * 2000-11-30 2008-11-26 富士電機機器制御株式会社 Circuit breaker overload trip device
JP2005222738A (en) * 2004-02-03 2005-08-18 Fuji Electric Fa Components & Systems Co Ltd Overload/open-phase tripping device of circuit breaker
DE102008062527B4 (en) * 2008-12-16 2022-08-11 Abb Schweiz Ag Multi-phase electrical switching device with a trip slide and a trip slide
JP4978681B2 (en) * 2009-10-23 2012-07-18 富士電機機器制御株式会社 Thermal overload relay

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE443183A (en) * 1937-08-20
BE543460A (en) * 1954-12-23
FR1279427A (en) * 1960-11-09 1961-12-22 Normacem Sa Thermal relay for polyphase currents
GB1250773A (en) * 1968-11-23 1971-10-20

Also Published As

Publication number Publication date
CH570035A5 (en) 1975-11-28
AU476175B2 (en) 1976-09-16
CA977805A (en) 1975-11-11
ES416155A1 (en) 1976-03-01
US3792401A (en) 1974-02-12
DE2329642A1 (en) 1974-01-17
BE801424A (en) 1973-12-26
DE7321781U (en) 1973-09-13
BR7304657D0 (en) 1974-08-22
GB1431576A (en) 1976-04-07
AU5663473A (en) 1974-12-12
FR2191243B1 (en) 1978-07-21
FR2191243A1 (en) 1974-02-01

Similar Documents

Publication Publication Date Title
IE38056B1 (en) Improvements in or relating to mounting devices
ZA728342B (en) Improvements in or relating to insulating materials
HK67978A (en) Improvements in or relating to semiconductor devices
ZA712161B (en) Improvements in or relating to electrical switches
ZA721496B (en) An improvement in or relating to electrical apparatus
ZA721508B (en) An improvement in or relating to electrical apparatus
GB1374621A (en) Thermal device
ZA734363B (en) An improvement in or relating to thermally responsive electrical device
ZA734872B (en) An improvement in or relating to circuit breaker system
ZA733019B (en) Improvements in or relating to shaving devices
ZA717487B (en) Temperature sensing device
ZA734873B (en) An improvement in or relating to disposable circuit breaker
ZA714598B (en) An improvement in or relating to fuse device
ZA735671B (en) Improvements in or relating to electrical heating elements
MY7600173A (en) Improvements in or relating to temperature compesated electric timepieces
ZA732672B (en) Improvements in or relating to electrical installations
IL41990A0 (en) Improvements in or relating to electrical heaters
ZA711543B (en) Improvements in or relating to insulating materials
MY7500176A (en) Improvements in or relating to electrical signalling apparatus
HK51877A (en) Improvements in indicating devices
ZA716467B (en) An improvement in or relating to enclosed switchgear
ZA724389B (en) Improvements in or relating to advertising devices
HK26377A (en) Improvements in or relating to television camera measuring devices
CA904770A (en) Heat responsive device
ZA734537B (en) Improvements in or relating to electric key-switches