GB1469146A - Method of detecting a leak in a vacuum interrupter - Google Patents
Method of detecting a leak in a vacuum interrupterInfo
- Publication number
- GB1469146A GB1469146A GB2775974A GB2775974A GB1469146A GB 1469146 A GB1469146 A GB 1469146A GB 2775974 A GB2775974 A GB 2775974A GB 2775974 A GB2775974 A GB 2775974A GB 1469146 A GB1469146 A GB 1469146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- force
- interrupters
- circuit breaker
- operating rod
- interrupter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- H01H33/668—Means for obtaining or monitoring the vacuum
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Measuring Fluid Pressure (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
1469146 Vacuum switches GENERAL ELECTRIC CO 21 June 1974 [11 July 1973] 27759/74 Heading H1N The invention relates to methods of leak detection in a vacuum-type circuit breaker in which the circuit breaker includes a housing 10 filled with pressurized insulating gas, e.g. SF6, containing a plurality of series-connected vacuum interrupters 20 of conventional design operatively interconnected via a ladder-type linkage 42, 42 and overtravel devices 55 (Figs. 3 and 4, not shown), to an operating rod 45 which is disconnectably coupled to a closing mechanism 65 by a pin 67. The gas pressure tends to hold the interrupter contacts 26, 27 closed and also exerts an ejecting force on the operating rod 45 at the entry point to the housing where it is sealed by a bellows 47 and the breaker opening force is derived from a spring 50 bearing against a thrust plate 52 on to a shoulder 54 on the operating rod, which spring force can be rendered ineffective by operating jack screws 68 to move the thrust plate 52 clear of the shoulder 54. To test for a major leakage in any interrupter 20 the circuit breaker is opened, the closing mechanism disconnected by removing the pin 67 and the net force on the operating rod 45 is then measured and compared to a standard value with the interrupters intact and when the gas pressure (gauge 15) is at a given value, due allowance being made for the force exerted by the opening spring 50. For more accurate assessment the additional step of rendering the opening spring 50 ineffective can be taken before the net force is measured. For minor leaks an electrical test method of applying a voltage across the plurality of interrupters (circuit breaker open) results in a glow discharge within a leaky interrupter and by making the interrupters with translucent casings the discharge can be detected externally of the housing 10 through a lightsensitive device 75.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00378339A US3814885A (en) | 1973-07-11 | 1973-07-11 | Method of detecting a leak in a vacuum interrupter located inside a housing containing pressurized gas |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1469146A true GB1469146A (en) | 1977-03-30 |
Family
ID=23492733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2775974A Expired GB1469146A (en) | 1973-07-11 | 1974-06-21 | Method of detecting a leak in a vacuum interrupter |
Country Status (6)
Country | Link |
---|---|
US (1) | US3814885A (en) |
JP (1) | JPS5033467A (en) |
CH (1) | CH577678A5 (en) |
DE (1) | DE2430136A1 (en) |
FR (1) | FR2237202A1 (en) |
GB (1) | GB1469146A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112614735A (en) * | 2020-12-17 | 2021-04-06 | 张勤珍 | Outdoor high-voltage vacuum circuit breaker |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE410067B (en) * | 1974-04-02 | 1979-09-17 | Siemens Ag | DEVICE FOR DETECTING LACK OF OPERATION FOR VACUUM BREAKING CHAMBER |
JPS5144405U (en) * | 1974-09-25 | 1976-04-01 | ||
US3983345A (en) * | 1975-01-30 | 1976-09-28 | General Electric Company | Method of detecting a leak in any one of the vacuum interrupters of a high voltage circuit breaker |
JPS5744587Y2 (en) * | 1976-10-21 | 1982-10-01 | ||
AU2826584A (en) * | 1983-04-11 | 1984-11-07 | Raychem Corporation | Load break switch |
US4972055A (en) * | 1989-12-29 | 1990-11-20 | Abb Power T&D Company Inc. | Multiple vacuum interrupter fluid insulated circuit breaker with isolation gap |
FR2683939B1 (en) * | 1991-11-20 | 1993-12-31 | Gec Alsthom Sa | MEDIUM VOLTAGE SELF-DISCONNECTING CIRCUIT BREAKER AND APPLICATION TO A CELL AND A MEDIUM VOLTAGE STATION. |
US7148677B2 (en) * | 2005-02-15 | 2006-12-12 | Eaton Corporation | Vacuum circuit interrupter including circuit monitoring leakage or loss of vacuum and method of monitoring a vacuum interrupter for leakage or loss of vacuum |
EP2624273B1 (en) * | 2012-02-03 | 2015-04-01 | ABB Technology AG | Vacuum interrupter with transition areas between metal housing parts and ceramic housing parts covered by insulating material |
CN102683100B (en) * | 2012-05-18 | 2014-08-13 | 沈阳华德海泰电器有限公司 | Serial connection structure of high-voltage vacuum arc extinguish chambers |
US9761394B2 (en) | 2013-02-08 | 2017-09-12 | Hubbell Incorporated | Current interrupter for high voltage switches |
US10600592B2 (en) | 2013-12-18 | 2020-03-24 | Hubbell Incorporated | Single bottle interrupter |
WO2018146739A1 (en) * | 2017-02-08 | 2018-08-16 | 三菱電機株式会社 | Vacuum deterioration monitoring device for vacuum valve, and opening/closing device provided with same |
CN115668426A (en) | 2020-03-31 | 2023-01-31 | 豪倍公司 | System and method for operating an electrical switch |
US11302499B1 (en) * | 2020-10-07 | 2022-04-12 | Mitsubishi Electric Power Products, Inc. | Vacuum circuit breaker |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3404247A (en) * | 1966-03-08 | 1968-10-01 | Gen Electric | Pressure responsive protective means for vacuum type circuit interrupters |
US3472981A (en) * | 1966-08-05 | 1969-10-14 | Gen Electric | Pressure responsive protective means for vacuum type circuit interrupters immersed in liquid |
US3493952A (en) * | 1966-08-05 | 1970-02-03 | Gen Electric | Electric circuit breaker with contact condition indicator |
JPS4945434B1 (en) * | 1968-11-22 | 1974-12-04 |
-
1973
- 1973-07-11 US US00378339A patent/US3814885A/en not_active Expired - Lifetime
-
1974
- 1974-06-20 JP JP49069754A patent/JPS5033467A/ja active Pending
- 1974-06-21 GB GB2775974A patent/GB1469146A/en not_active Expired
- 1974-06-24 DE DE2430136A patent/DE2430136A1/en active Pending
- 1974-06-26 CH CH878074A patent/CH577678A5/xx not_active IP Right Cessation
- 1974-07-11 FR FR7424089A patent/FR2237202A1/fr not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112614735A (en) * | 2020-12-17 | 2021-04-06 | 张勤珍 | Outdoor high-voltage vacuum circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
JPS5033467A (en) | 1975-03-31 |
DE2430136A1 (en) | 1975-01-30 |
US3814885A (en) | 1974-06-04 |
CH577678A5 (en) | 1976-07-15 |
FR2237202A1 (en) | 1975-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |