Research system of low temperature characteristics of oil-immersed current transformer based on comprehensive judgment of experts
A current transformer and comprehensive judgment technology, which is applied in the direction of instruments, measuring electricity, and measuring electrical variables, etc., to achieve clear technical guidance, intuitive test results, and strong pertinence
Active Publication Date: 2022-06-24
INNER MONGOLIA POWER GRP
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Problems solved by technology
[0005] At present, due to the influence of special environmental conditions of low temperature and large temperature difference on oil-immersed electrical equipment, although it has been recognized by technical personnel experience, there is no effective means of verification
One of the difficulties lies in how to effectively separate the development of the defect itself from the deterioration effect of the temperature on the defect.
Method used
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Embodiment Construction
[0033] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0034] figure 1 It is the structure diagram of the low temperature characteristic research system of oil-immersed current transformer based on the comprehensive judgment of experts.
[0035] Depend on figure 1 It can be seen that the present invention provides a low-temperature characteristic research system for oil-immersed current transformers based on comprehensive judgment by experts. Monitoring system 400 .
[0036] The defect inspection system 100 is a defect inspection system for an oil-immersed current transformer. The system checks the oil-immersed current transformer according to the historical test results, diagnostic test results and dismantling process of the oil-immersed current transformer to be inspected. The defect causes of the device; the parameter testing device 300 conducts electrical parameter testing of the oil-immersed...
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The invention provides a system for researching the low-temperature characteristics of an oil-immersed current transformer based on expert comprehensive judgment, including four parts: a defect troubleshooting system, an expert comprehensive judgment system, a simulation test platform and its monitoring system, and a parameter testing device. The expert comprehensive judgment system includes six units: data entry, defect matching, simulation test setting, comprehensive judgment, defect equivalent calculation and output. The defect investigation system obtains the defect causes of the oil-immersed current transformer to be investigated. After the expert comprehensively judges the system matching and setting, the simulation test platform uses the simulation test sample to study the low-temperature operation characteristics of the oil-immersed current transformer. The test results of electrical parameters at different temperatures are used to calculate the electric field and temperature field of the oil-immersed current transformer, and the calculation results can support the low-temperature simulation test results. The system can provide technical suggestions for the selection, operation and maintenance of oil-immersed electrical equipment in low-temperature and large-temperature-difference operating environments.
Description
technical field [0001] The invention belongs to the technical field of electrical engineering power transmission and transformation, and relates to a low-temperature characteristic research system of an oil-immersed current transformer based on comprehensive judgment of experts. Background technique [0002] External environmental conditions such as temperature, humidity and pollution are factors that must be considered in the design and selection of power transmission and transformation equipment. Due to the limitations of the geographical environment and climatic conditions, how the special environmental conditions of low temperature and large temperature difference affect the operation of oil-immersed electrical equipment, and how to operate and maintain the equipment efficiently after it is put into operation, the design manual and national standards do not give make clear recommendations. [0003] Different from the large oil storage capacity of the main transformer bo...
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IPC IPC(8): G01R31/00G01R35/02G01N25/72G06F30/20G06F119/08
CPCG01R31/003G01R35/02G01N25/72G06F30/20G06F2119/08
Inventor 王琼车传强窦冰杰张建英郑思齐付楚珺
Owner INNER MONGOLIA POWER GRP