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High-voltage dry-type air-core reactor fault monitoring device and monitoring method

A technology of air-core reactor and dry-type reactor, which is applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve problems such as internal failure and powerlessness

Active Publication Date: 2018-08-28
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For the partial discharge fault detection of reactors, the "sun-blind" ultraviolet imaging method is currently used, which can display partial discharge in the form of images. helpless

Method used

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  • High-voltage dry-type air-core reactor fault monitoring device and monitoring method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] The fault monitoring device of the present invention includes a gas probe 6 , a gas pipeline 7 , a gas sensor 4 , an air pump 5 , an information processing module 3 and an air outlet pipe 8 .

[0037] A plurality of gas probes are respectively installed in the air duct formed by the gap between two adjacent layers of coils of the reactor, arranged from bottom to top along the height of the air duct and evenly distributed. The gas probe located at the bottom of the air duct is used to detect the gas in the environment. Multiple gas probes correspond to multiple gas pipelines one by one. A filter screen is installed on the gas probe. The gas pipeline is arranged vertically along the air duct and fixed on the inner wall of the reactor.

[0038] figure 2 It is a schematic diagram of Embodiment 1 of the fault monitoring device of the pre...

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Abstract

The invention provides a high-voltage dry-type air-core reactor fault monitoring device and a monitoring method. The high-voltage dry-type air-core reactor fault monitoring device comprises gas probes (6), gas pipelines (7), gas sensors (4) or gas detectors (10), an air pump (5) and an information processing module (3). Reactor fault is monitored by detecting gases generated under a discharge condition, and thus monitoring of the internal fault of a reactor is realized. The gas probes (6) having trumpet-type openings respectively and arranged in reactor air channels detect decomposed gases; the gases are sent to a low potential place through the gas pipelines (7) provided with the air pump (5); the gas sensors (4) or the gas detectors (10) are utilized to measure content of gas components; and the information processing module (3) carries out fault judgment according to the gas content and concentration detected by the gas probes (6) arranged at different positions. The gas pipelines are arranged vertically along the air channels, and are fixedly arranged to the inner walls of the reactor. The gas probes (6) and the gas pipelines (7) are made of insulating materials.

Description

technical field [0001] The invention relates to a fault monitoring device and a monitoring method, in particular to a monitoring device and a monitoring method for a dry-type air-core reactor. Background technique [0002] The operation, maintenance and on-line monitoring technology of dry-type air-core reactors used in UHVDC converter stations and other occasions is still in the stage of experience accumulation. Affected by the reactor's own structural characteristics, manufacturing process, and strong electromagnetic field environment, as the operating load and ambient temperature change, it is easier to generate heat than other equipment, and the smoothing reactor generates heat during actual operation. , or even burning phenomenon; in addition, due to the insulation defects caused by the inner surface dirt, burrs, poor contact and other reasons during the manufacturing, transportation, installation and use of the reactor, partial discharge phenomenon will occur, causing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R31/12
CPCG01R31/00G01R31/12
Inventor 张国强李康
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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