Temperature monitoring device and method for dry air-core reactor
A technology of air-core reactor and monitoring device, applied in the field of electric power
Pending Publication Date: 2017-09-05
SHENZHEN POWER SUPPLY BUREAU +1
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Problems solved by technology
Seriously limit the application and role of temperature monitoring technology in power grids and power systems
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[0039] The invention provides a temperature monitoring device for a dry-type air-core reactor, such as figure 1 As shown, the device includes: several pairs of temperature sensors 2 , at least one data sampling and processing module 3 , a communication module 7 , and a host computer 9 .
[0040] Each pair of temperature sensors 2 in several pairs of temperature sensors 2 is respectively set in the preset range of the upper and lower ends of the air passage 1 between different enclosures of the dry-type air-core reactor; the temperature sensor 2 is used to collect the air passage 1 between the enclosures. The temperature data at the upper and lower ends are converted into corresponding first electrical signals for output.
[0041]Each pair of temperature sensors 2 is located in the same encapsulation air channel 1, and one of the temperature sensors 2 is arranged near the upper end of the encapsulation air channel 1 to collect temperature data at the upper end of the encapsulat...
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The invention provides a temperature monitoring device and method for a dry air-core reactor. The device comprises multiple pairs of temperature sensors, at least one data sampling and processing module, a communication module and an upper computer. Temperature data of the upper and lower ends of air passages of coating and sealing compartments is collected by the temperature sensors and output to the data sampling and processing module; the corresponding temperature data together with sampling time node data is uploaded to the upper computer through the communication module by the data sampling and processing module; the change rate of the temperature data difference value of the upper and lower ends of the same air passage of the corresponding coating and sealing compartment is calculated by the upper computer and used as the change rate of temperature rising, failures in the initial period or the evolutionary period of generation of the dry air-core reactor are judged, and failure alerts of the initial period or the evolutionary period are raised. By means of the device and method, the failures in the initial period or the evolutionary period of the dry air-core reactor are judged, so that recognizing, monitoring and early warning of the failures in the initial period or the evolutionary period of the dry air-core reactor are achieved.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to a temperature monitoring device and method for dry-type air-core reactors. Background technique [0002] In the field of electric power technology, ultra-high voltage power grids and ultra-high voltage power grids have large-capacity and long-distance power transmission capabilities, and are the backbone networks of national power transmission. Dry-type air-core reactors play the role of compensating reactive power, limiting short-circuit current, and filtering high-order harmonics in the power grid system. It is one of the important power equipment to ensure the stable operation of the power system. [0003] Because dry-type air-core reactors used in high-voltage power grids are mainly used outdoors and under maintenance-free conditions, and the working conditions are harsh, accidents of dry-type air-core reactors occur frequently. Statistics show that the main causes o...
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IPC IPC(8): G01K7/22
CPCG01K7/22
Inventor 黄文武凌云王玮刘旭明章彬黄志伟贺振华吴玉坤孟波
Owner SHENZHEN POWER SUPPLY BUREAU