ZA731485B - Improvements relating to electrical switchgear - Google Patents

Improvements relating to electrical switchgear

Info

Publication number
ZA731485B
ZA731485B ZA731485A ZA731485A ZA731485B ZA 731485 B ZA731485 B ZA 731485B ZA 731485 A ZA731485 A ZA 731485A ZA 731485 A ZA731485 A ZA 731485A ZA 731485 B ZA731485 B ZA 731485B
Authority
ZA
South Africa
Prior art keywords
improvements relating
electrical switchgear
switchgear
electrical
relating
Prior art date
Application number
ZA731485A
Other languages
English (en)
Inventor
G Caton
Original Assignee
Yorkshire Switchgear & Eng Co
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 Yorkshire Switchgear & Eng Co filed Critical Yorkshire Switchgear & Eng Co
Publication of ZA731485B publication Critical patent/ZA731485B/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/68—Liquid-break switches, e.g. oil-break
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
ZA731485A 1972-03-16 1973-03-02 Improvements relating to electrical switchgear ZA731485B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1248372A GB1418639A (en) 1972-03-16 1972-03-16 Electrical swtichgear

Publications (1)

Publication Number Publication Date
ZA731485B true ZA731485B (en) 1973-12-19

Family

ID=10005440

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA731485A ZA731485B (en) 1972-03-16 1973-03-02 Improvements relating to electrical switchgear

Country Status (16)

Country Link
US (1) US3833780A (xx)
JP (1) JPS492060A (xx)
AU (1) AU470662B2 (xx)
BE (1) BE796880A (xx)
CA (1) CA978248A (xx)
CH (1) CH582417A5 (xx)
DE (1) DE2312759C3 (xx)
DK (1) DK143824C (xx)
FR (1) FR2176083B1 (xx)
GB (1) GB1418639A (xx)
IT (1) IT980613B (xx)
MY (1) MY7700296A (xx)
NL (1) NL167269C (xx)
NO (1) NO135048C (xx)
SE (1) SE377221B (xx)
ZA (1) ZA731485B (xx)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL120901C (xx) * 1963-05-17
DE1254755B (de) * 1964-11-14 1967-11-23 Reinhausen Maschf Scheubeck Dauerhauptkontakt fuer Lastumschalter von Stufentransformatoren
US3469043A (en) * 1967-07-19 1969-09-23 Ite Imperial Corp Dual mode circuit breaker withdrawal mechanism

Also Published As

Publication number Publication date
MY7700296A (en) 1977-12-31
FR2176083B1 (xx) 1977-09-02
JPS492060A (xx) 1974-01-09
IT980613B (it) 1974-10-10
NO135048C (xx) 1977-01-26
CA978248A (en) 1975-11-18
CH582417A5 (xx) 1976-11-30
DE2312759C3 (de) 1978-11-30
NL7303620A (xx) 1973-09-18
AU5340773A (en) 1974-09-19
NL167269B (nl) 1981-06-16
DK143824C (da) 1982-03-29
GB1418639A (en) 1975-12-24
NO135048B (xx) 1976-10-18
DE2312759A1 (de) 1973-09-27
SE377221B (xx) 1975-06-23
DE2312759B2 (de) 1978-04-06
FR2176083A1 (xx) 1973-10-26
DK143824B (da) 1981-10-12
NL167269C (nl) 1981-11-16
US3833780A (en) 1974-09-03
AU470662B2 (en) 1976-03-25
BE796880A (fr) 1973-07-16

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