GIL pipeline internal fault monitoring and positioning system and method
An internal fault and positioning system technology, which is applied to the fault location, detects faults according to the conductor type, and measures electricity. It can solve the problems of false alarms, inaccurate positioning, and inaccurate positioning, and achieve high positioning accuracy and simple construction. , Strong anti-interference ability
Active Publication Date: 2021-02-23
南京启智电气技术有限公司
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Problems solved by technology
In a complex electromagnetic environment, ultrasonic and high-frequency electromagnetic waves are easily disturbed, so ultrasonic or high-frequency detection methods are often inaccurate and prone to false alarms. The positioning position formed is also inaccurate
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[0025] A GIL pipeline internal fault monitoring and positioning system, such as figure 1 , comprising several optical sensors 1, several optical signal collectors 10, 20, 30, 40 and a monitoring and positioning device 50, the optical sensors 1 are arranged on the outer wall of the inflatable unit of the GIL pipeline, and the optical sensors 1 adopt a wall-penetrating optical sensor 1, The penetrating end of the optical sensor 1 adopts a wide-angle lens, and the penetrating end of the optical sensor 1 penetrates into the interior of the GIL pipeline, and the non-penetrating end of the optical sensor 1 is set outside the GIL pipeline, and the non-penetrating end of the optical sensor 1 is an optical fiber interface , the optical sensor 1 is connected to the optical signal collectors 10, 20, 30, 40 through the optical fiber interface and the plastic optical fiber 2, and the optical signal collectors 10, 20, 30, 40 are connected to the monitoring and positioning device 50 through t...
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The invention provides a GIL pipeline internal fault monitoring and positioning system and method. The system includes several optical sensors, several optical signal collectors and monitoring and positioning devices. The optical sensors are arranged on the outer wall of the inflatable unit of the GIL pipeline. Type optical sensor, the penetrating end of the optical sensor adopts a wide-angle lens, and the penetrating end of the optical sensor penetrates into the inside of the GIL pipeline, the non-penetrating end of the optical sensor is set outside the GIL pipeline, and the non-penetrating end of the optical sensor is an optical fiber interface , the optical sensor is connected to the optical signal collector through the optical fiber interface and the plastic optical fiber, and the optical signal collector is connected to the monitoring and positioning device through the communication optical fiber; the invention reliably detects the internal insulation or partial discharge fault of the GIL pipeline based on the optical signal, and is free from electromagnetic and environmental interference; The fault can be accurately located to each section of the pipeline, and the positioning information is reliable.
Description
technical field [0001] The invention relates to a GIL pipeline internal fault monitoring and positioning system and method. Background technique [0002] GIL (gas-insulated metal enclosed transmission line) is a gas-insulated metal enclosed transmission line, which is a kind of sulfur hexafluoride (SF 6 ) or other gas-insulated, high-voltage, high-current, long-distance power transmission equipment with coaxial arrangement of shell and conductor, which has large transmission capacity, small loss, small footprint, high operational reliability, small maintenance, long life, and environmental protection Significant advantages such as small impact. [0003] In recent years, with the vigorous promotion of UHV transmission systems and the improvement of the voltage level of urban substations, the application of GIL lines has become more and more extensive. In 2016, the Huainan-Nanjing-Shanghai 1000 kV UHV AC power transmission and transformation project Sutong GIL integrated pip...
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IPC IPC(8): G01R31/08G01R31/12
CPCG01R31/085G01R31/1272
Inventor 陈凡刘海涛李军
Owner 南京启智电气技术有限公司