JPS6450333A - Gas-insulated electrical device - Google Patents
Gas-insulated electrical deviceInfo
- Publication number
- JPS6450333A JPS6450333A JP62205207A JP20520787A JPS6450333A JP S6450333 A JPS6450333 A JP S6450333A JP 62205207 A JP62205207 A JP 62205207A JP 20520787 A JP20520787 A JP 20520787A JP S6450333 A JPS6450333 A JP S6450333A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- high voltage
- spiral groove
- voltage conductor
- groove
- 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.)
- Pending
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
- H01H33/165—Details concerning the impedances
Landscapes
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
PURPOSE:To reduce abnormal potentials and prevent dielectric breakdown by forming a spiral groove on the surface of and in the direction of a high voltage conductor and installing a resistor in the groove. CONSTITUTION:A high voltage conductor 1 is fix-supported with a spacer 3 in a sealed metallic container 2. The inside of the container 2 is filled with SF6 gas. In the middle of the high voltage conductor 1 is provided a contact point section 5 of a switch such as a breaker to be fix-supported with the spacer 3. A spiral groove 11 is formed on the axial directional surface of the high voltage conductor 1 and a resistor 12 such as a non-linear resistor is installed in the groove. Current flows through the portion of the high voltage conductor below the spiral groove 11. On the other hand, while an overvoltage containing much of high frequency components is produced at the time of opening or closing the switch such as the breaker, the passage thereof is obstructed by the equivalent coil constituted with the spiral groove 11. The voltage induced in the spiral groove 11 increases with the increase in the frequency of the current. When the induced voltage exceeds the actuation voltage of the resistor 12, the resistor 12 works to absorb surge energy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62205207A JPS6450333A (en) | 1987-08-20 | 1987-08-20 | Gas-insulated electrical device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62205207A JPS6450333A (en) | 1987-08-20 | 1987-08-20 | Gas-insulated electrical device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6450333A true JPS6450333A (en) | 1989-02-27 |
Family
ID=16503173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62205207A Pending JPS6450333A (en) | 1987-08-20 | 1987-08-20 | Gas-insulated electrical device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450333A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1001504A1 (en) * | 1998-11-16 | 2000-05-17 | Alstom Holdings | Shielded electrical line for high-voltage installation |
-
1987
- 1987-08-20 JP JP62205207A patent/JPS6450333A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1001504A1 (en) * | 1998-11-16 | 2000-05-17 | Alstom Holdings | Shielded electrical line for high-voltage installation |
FR2786037A1 (en) * | 1998-11-16 | 2000-05-19 | Alstom Technology | SHIELDED ELECTRICAL CONDUCTION BAR FOR HIGH VOLTAGE ELECTRICAL STATION |
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