ZA731485B - Improvements relating to electrical switchgear - Google Patents
Improvements relating to electrical switchgearInfo
- 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
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
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 (da) |
| JP (1) | JPS492060A (da) |
| AU (1) | AU470662B2 (da) |
| BE (1) | BE796880A (da) |
| CA (1) | CA978248A (da) |
| CH (1) | CH582417A5 (da) |
| DE (1) | DE2312759C3 (da) |
| DK (1) | DK143824C (da) |
| FR (1) | FR2176083B1 (da) |
| GB (1) | GB1418639A (da) |
| IT (1) | IT980613B (da) |
| MY (1) | MY7700296A (da) |
| NL (1) | NL167269C (da) |
| NO (1) | NO135048C (da) |
| SE (1) | SE377221B (da) |
| ZA (1) | ZA731485B (da) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL120901C (da) * | 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 |
-
1972
- 1972-03-16 GB GB1248372A patent/GB1418639A/en not_active Expired
-
1973
- 1973-03-02 ZA ZA731485A patent/ZA731485B/xx unknown
- 1973-03-12 US US00340303A patent/US3833780A/en not_active Expired - Lifetime
- 1973-03-13 JP JP48029335A patent/JPS492060A/ja active Pending
- 1973-03-13 NO NO993/73A patent/NO135048C/no unknown
- 1973-03-14 DE DE2312759A patent/DE2312759C3/de not_active Expired
- 1973-03-15 FR FR7309248A patent/FR2176083B1/fr not_active Expired
- 1973-03-15 CA CA166,156A patent/CA978248A/en not_active Expired
- 1973-03-15 NL NL7303620.A patent/NL167269C/xx not_active IP Right Cessation
- 1973-03-15 CH CH377073A patent/CH582417A5/xx not_active IP Right Cessation
- 1973-03-15 IT IT67753/73A patent/IT980613B/it active
- 1973-03-15 DK DK141773A patent/DK143824C/da not_active IP Right Cessation
- 1973-03-16 BE BE128881A patent/BE796880A/xx not_active IP Right Cessation
- 1973-03-16 AU AU53407/73A patent/AU470662B2/en not_active Expired
- 1973-03-16 SE SE7303696A patent/SE377221B/xx unknown
-
1977
- 1977-12-30 MY MY296/77A patent/MY7700296A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MY7700296A (en) | 1977-12-31 |
| FR2176083B1 (da) | 1977-09-02 |
| JPS492060A (da) | 1974-01-09 |
| IT980613B (it) | 1974-10-10 |
| NO135048C (da) | 1977-01-26 |
| CA978248A (en) | 1975-11-18 |
| CH582417A5 (da) | 1976-11-30 |
| DE2312759C3 (de) | 1978-11-30 |
| NL7303620A (da) | 1973-09-18 |
| AU5340773A (en) | 1974-09-19 |
| NL167269B (nl) | 1981-06-16 |
| DK143824C (da) | 1982-03-29 |
| GB1418639A (en) | 1975-12-24 |
| NO135048B (da) | 1976-10-18 |
| DE2312759A1 (de) | 1973-09-27 |
| SE377221B (da) | 1975-06-23 |
| DE2312759B2 (de) | 1978-04-06 |
| FR2176083A1 (da) | 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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