GB1018251A - Improvements relating to high voltage gas-blast electric circuit breakers - Google Patents
Improvements relating to high voltage gas-blast electric circuit breakersInfo
- Publication number
- GB1018251A GB1018251A GB3376862A GB3376862A GB1018251A GB 1018251 A GB1018251 A GB 1018251A GB 3376862 A GB3376862 A GB 3376862A GB 3376862 A GB3376862 A GB 3376862A GB 1018251 A GB1018251 A GB 1018251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- contacts
- gas
- blast
- resistor
- 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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
- H01H33/167—Impedances connected with contacts the impedance being inserted only while opening the switch
-
- 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
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
Landscapes
- Circuit Breakers (AREA)
Abstract
1,018,251. Gas blast switches. A. REYROLLE & CO. Ltd. Sept. 3, 1962, No. 33768/62. Heading H2B. In a gas blast circuit breaker of the type in which the main contacts 12, 16 are in a chamber 11 permanently filled with compressed gas and an impedance 43 is switched in parallel with the main contacts during each opening operation, the gas blast is initiated by a valve 21 opened when the contacts 12, 16 open and is stopped by a second valve 46 whose moving member carries the contacts 49 of the impedance switch. In a first embodiment (Fig. 1, not shown) valve 21 is rigidly coupled to moving contact 12 and they are opened by venting cylinders 24, 30 through a control valve 53. Valve 53 also supplies compressed air through a pipe 64 to move valve 46 a short while later to separate resistor contacts 49, 50 and then to close the exhaust 67. The contacts are reclosed by repressurizing cylinders 24, 30 through valve 53, an extension of the rod 27 of valve 21 ensures that valve 46 is opened and the resistor contacts closed. In a second embodiment (Fig. 2) both the main contacts 103, 104 and the resistor contacts 119, 120 are housed in the gas-filled chamber, the blast is initiated by a valve 135 which also vents cylinder 107 to move a piston 106 to open main contacts 103, 104. A rod 153 couples piston 106 with a valve 150 which allows compressed gas to enter above a piston 114 driving the latter downwards first to open resistor contacts 119, 120 and then to close exhaust valve 130 to stop the blast. The contacts are reclosed by repressurizing cylinder 136 to reclose valve 135 when cylinder 107 is refilled with gas via flap valve 141 and the parts are returned to the positions shown.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3376862A GB1018251A (en) | 1962-09-03 | 1962-09-03 | Improvements relating to high voltage gas-blast electric circuit breakers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3376862A GB1018251A (en) | 1962-09-03 | 1962-09-03 | Improvements relating to high voltage gas-blast electric circuit breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1018251A true GB1018251A (en) | 1966-01-26 |
Family
ID=10357191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3376862A Expired GB1018251A (en) | 1962-09-03 | 1962-09-03 | Improvements relating to high voltage gas-blast electric circuit breakers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1018251A (en) |
-
1962
- 1962-09-03 GB GB3376862A patent/GB1018251A/en not_active Expired
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