GB776668A - Improvements in or relating to liquid blast electric circuit breakers - Google Patents
Improvements in or relating to liquid blast electric circuit breakersInfo
- Publication number
- GB776668A GB776668A GB1608854A GB1608854A GB776668A GB 776668 A GB776668 A GB 776668A GB 1608854 A GB1608854 A GB 1608854A GB 1608854 A GB1608854 A GB 1608854A GB 776668 A GB776668 A GB 776668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- piston
- contacts
- flow
- liquid
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/84—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being liquid, e.g. oil
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Circuit Breakers (AREA)
Abstract
776,668. Liquid-blast switches. GENERAL ELECTRIC CO., Ltd., and TAYLOR, S. Aug. 31, 1955 [May 31, 1954], No. 16088/54. Class 38(5) In an impulse type liquid-blast switch, liquid, e.g. oil, under relatively high pressure is applied above a piston 20 to open the contacts 15, 19 and to cause a flow of oil through the arc space. As the moving contact rod is moved down by the piston, an aperture 28 in the rod 19 is first moved below the top of the cylinder 12 so that oil can flow into and through the hollow contact 19 to the arcing space. When the contacts have. separated by a further amount, one or more larger apertures 28 move below the top of the cylinder so that a more powerful flow of oil is obtained. When the contacts are fully open, the end of a guide rod 21 plugs a hole 29 in the hollow contact rod 19 and stops the flow of oil. A spring 24 closes the contacts when the oil pressure is cut off. A number of the units shown may each be supported on pillar insulation 3 and be grouped around a central hollow insulator 2 through which pressure oil may be supplied to a chamber 32 from which oil pipes radiate to the respective switch units. A piston 8 biased by a spring 31 in the chamber permits the impulse to be imparted to arccontaminated oil 7 without fouling clean oil 6 from the pressure source which may be of the pneumatic-hydraulic type. According to the Provisional Specification a rubber bag may be used in place of the piston 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1608854A GB776668A (en) | 1954-05-31 | 1954-05-31 | Improvements in or relating to liquid blast electric circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1608854A GB776668A (en) | 1954-05-31 | 1954-05-31 | Improvements in or relating to liquid blast electric circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB776668A true GB776668A (en) | 1957-06-12 |
Family
ID=10070971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1608854A Expired GB776668A (en) | 1954-05-31 | 1954-05-31 | Improvements in or relating to liquid blast electric circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB776668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1490094B1 (en) * | 1963-05-13 | 1971-10-14 | Fabriek Van Electrische App N | LOW OIL HIGH VOLTAGE SWITCH |
-
1954
- 1954-05-31 GB GB1608854A patent/GB776668A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1490094B1 (en) * | 1963-05-13 | 1971-10-14 | Fabriek Van Electrische App N | LOW OIL HIGH VOLTAGE SWITCH |
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