IN171316B - - Google Patents
Info
- Publication number
- IN171316B IN171316B IN35/CAL/89A IN35CA1989A IN171316B IN 171316 B IN171316 B IN 171316B IN 35CA1989 A IN35CA1989 A IN 35CA1989A IN 171316 B IN171316 B IN 171316B
- Authority
- IN
- India
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
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- 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
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66269—Details relating to the materials used for screens in vacuum switches
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/165,067 US4797522A (en) | 1988-02-11 | 1988-02-11 | Vacuum-type circuit interrupter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN171316B true IN171316B (et) | 1992-09-19 |
Family
ID=22597277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN35/CAL/89A IN171316B (et) | 1988-02-11 | 1989-01-12 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4797522A (et) |
| CA (1) | CA1319730C (et) |
| IN (1) | IN171316B (et) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01122530A (ja) * | 1987-11-06 | 1989-05-15 | Mitsubishi Electric Corp | 真空遮断器の遮断性能劣化予知装置 |
| US4940862A (en) * | 1989-10-26 | 1990-07-10 | Westinghouse Electric Corp. | Vacuum interrupter with improved vapor shield for gas adsorption |
| US5120918A (en) * | 1990-11-19 | 1992-06-09 | Westinghouse Electric Corp. | Vacuum circuit interrupter contacts and shields |
| KR20020036375A (ko) * | 2000-11-09 | 2002-05-16 | 이종수 | 진공 인터럽터 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720798A (en) * | 1969-09-08 | 1973-03-13 | Sumitomo Electric Industries | Vacuum-type current interrupter |
| US3705281A (en) * | 1971-04-29 | 1972-12-05 | Joslyn Mfg & Supply Co | Bushing insulator improvements for a dead tank vacuum switch |
| US3836740A (en) * | 1972-05-03 | 1974-09-17 | Westinghouse Electric Corp | Vacuum type circuit interrupter having improved contacts |
| US3996437A (en) * | 1973-12-03 | 1976-12-07 | Cutler-Hammer, Inc. | Vacuum contactor for motor control and method of making |
| US3997748A (en) * | 1975-06-23 | 1976-12-14 | General Electric Company | Vacuum interrupter with primary electrode surrounded by high dielectric strength shield |
| JPS52150571A (en) * | 1976-06-09 | 1977-12-14 | Hitachi Ltd | Vacuum breaker electrode |
| US4171474A (en) * | 1977-05-27 | 1979-10-16 | Electric Power Research Institute, Inc. | Current interrupter electrode configuration |
| US4345126A (en) * | 1980-04-01 | 1982-08-17 | Westinghouse Electric Corp. | Vacuum interrupter with transfer-type axial magnetic field contacts |
| JPS56156626A (en) * | 1980-05-06 | 1981-12-03 | Meidensha Electric Mfg Co Ltd | Vacuum breaker |
| JPS5715319A (en) * | 1980-07-01 | 1982-01-26 | Meidensha Electric Mfg Co Ltd | Vacuum breaker and method of producing same |
| JPS5717527A (en) * | 1980-07-07 | 1982-01-29 | Meidensha Electric Mfg Co Ltd | Vacuum breaker |
| JPS633067Y2 (et) * | 1980-11-05 | 1988-01-26 | ||
| US4408107A (en) * | 1981-06-24 | 1983-10-04 | Kabushiki Kaisha Meidensha | Vacuum interrupter |
| KR860001452B1 (ko) * | 1981-10-03 | 1986-09-25 | 이마이 마사오 | 진공 차단기 |
| DE3302201A1 (de) * | 1983-01-24 | 1984-07-26 | Siemens AG, 1000 Berlin und 8000 München | Kontaktanordnung fuer vakuumschalter |
| US4661666A (en) * | 1985-05-28 | 1987-04-28 | Kabushiki Kaisha Meidensha | Vacuum interrupter |
| US4743718A (en) * | 1987-07-13 | 1988-05-10 | Westinghouse Electric Corp. | Electrical contacts for vacuum interrupter devices |
-
1988
- 1988-02-11 US US07/165,067 patent/US4797522A/en not_active Expired - Lifetime
-
1989
- 1989-01-12 IN IN35/CAL/89A patent/IN171316B/en unknown
- 1989-01-30 CA CA000589550A patent/CA1319730C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA1319730C (en) | 1993-06-29 |
| US4797522A (en) | 1989-01-10 |