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
Other languages
English (en)
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/xx

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

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 (ja) * 1977-12-29 1984-10-18 富士電機株式会社 熱動形過負荷継電器
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 (fr) * 1981-11-09 1983-05-13 Telemecanique Electrique Dispositif differentiel pour un relais thermique polyphase
US4528539A (en) * 1984-06-28 1985-07-09 Eaton Corporation Reduced-size thermal overload relay
JPH0347242Y2 (xx) * 1985-03-26 1991-10-08
DE8619694U1 (de) * 1986-07-23 1986-09-18 Siemens AG, 1000 Berlin und 8000 München Überlastrelais
DE19727732B4 (de) * 1997-06-30 2009-08-06 Abb Ag Kombinationsschaltgerät
JP4045709B2 (ja) * 1999-04-02 2008-02-13 富士電機機器制御株式会社 回路しゃ断器の熱動形過負荷引外し装置
JP4186414B2 (ja) * 2000-11-29 2008-11-26 富士電機機器制御株式会社 瞬時引外し式回路しゃ断器
JP4186415B2 (ja) * 2000-11-30 2008-11-26 富士電機機器制御株式会社 回路しゃ断器の過負荷引外し装置
JP2005222738A (ja) * 2004-02-03 2005-08-18 Fuji Electric Fa Components & Systems Co Ltd 回路遮断器の過負荷・欠相引外し装置
DE102008062527B4 (de) * 2008-12-16 2022-08-11 Abb Schweiz Ag Mehrphasiges elektrisches Schaltgerät mit einem Auslöseschieber sowie ein Auslöseschieber
JP4978681B2 (ja) * 2009-10-23 2012-07-18 富士電機機器制御株式会社 熱動形過負荷継電器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE443183A (xx) * 1937-08-20
BE543460A (xx) * 1954-12-23
FR1279427A (fr) * 1960-11-09 1961-12-22 Normacem Sa Relais thermique pour courants polyphasés
GB1250773A (xx) * 1968-11-23 1971-10-20

Also Published As

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

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