JPS6450333A - Gas-insulated electrical device - Google Patents

Gas-insulated electrical device

Info

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
Application number
JP62205207A
Other languages
Japanese (ja)
Inventor
Hirokuni Aoyanagi
Satoshi Matsumoto
Hitoshi Okubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP62205207A priority Critical patent/JPS6450333A/en
Publication of JPS6450333A publication Critical patent/JPS6450333A/en
Pending legal-status Critical Current

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.
JP62205207A 1987-08-20 1987-08-20 Gas-insulated electrical device Pending JPS6450333A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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