Leakage detection device for gas insulated transmission line

A gas insulation and measuring device technology, which is used in measuring devices, fluid tightness testing, and machine/structural component testing. good reliability

Inactive Publication Date: 2011-10-05
LG CABLE LTD (KR)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, conventional pressure sensors cannot reflect the pressure change caused by the temperature change of the

Method used

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  • Leakage detection device for gas insulated transmission line
  • Leakage detection device for gas insulated transmission line
  • Leakage detection device for gas insulated transmission line

Examples

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Embodiment Construction

[0023] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0024] exist figure 2 A gas leakage measuring device for a gas insulated transmission line according to an embodiment of the present invention is schematically shown in .

[0025] Such as figure 2 As shown, in the case of the gas insulated power line, in the cylindrical outer container 10 , the cylindrical conductor 20 is arranged with a distance from the outer container 10 maintained by the supporting insulator 30 . The insulating space is filled with insulating gas, and a particle trap 60 is arranged in the middle of the line.

[0026] According to this embodiment, the outer container 10 is provided with a pressure gauge 71 for detecting the pressure of the insulating gas inside the transmission line, and the outer container 10 is provided with an insulating gas temperature sensor 100 for detecting the temperature of the insul...

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Abstract

The invention provides a leakage detection device for a gas insulated transmission line in a cylindrical outer container which is spaced from a cylindrical conductor retained via a supporting insulator. Insulation gas is filled in insulation spaces divided by partitions, and a particle trap is arranged in the line. The leakage detection device comprises a pressure gauge arranged on the container for detecting insulated gas pressure in the transmission line, an insulated gas temperature sensor arranged in the container for detecting the temperature of the insulated gas, a controller reflecting the detection signal of the insulated gas temperature sensor on the pressure detected by the pressure gauge and determining leakage based on actual reduction of gas, and an alarm generator notifying gas leakage when controlled by the controller.

Description

technical field [0001] The present invention relates to a gas insulated transmission line, and particularly relates to a gas leakage measurement device (Gas Leakage Measurement Apparatus in Gas Leakage Measurement Apparatus in Gas Leakage Measurement Apparatus in which the pressure measurement value is compensated by reflecting the actual temperature of the insulating gas inside the transmission line and can quickly and accurately measure gas leakage. the Gas Insulated Transmission Line). Background technique [0002] As known in US Pat. Nos. 4,743,709, 4,721,829, and 4,554,399, a gas insulated transmission line (GIL: Gas Insulated Line, or CGIT: Compressed Gas Insulated Transmission Bus System) is formed in a cylindrical outer container made of aluminum alloy. The cylindrical conductor is fixed inside, and the space between the conductor and the outer container is filled with sulfur hexafluoride (SF 6 ) and / or nitrogen (N) and other mixed gases composed of insulating gas a...

Claims

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Application Information

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IPC IPC(8): G01M3/00
CPCG01M3/2815G08B21/12
Inventor 朴信雨南皙铉安美卿李贞民成许庆
Owner LG CABLE LTD (KR)
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