Recognition device and method for abnormal heating defect rank of electric power apparatus

A technology for power equipment and defect levels, which is applied to measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problem of inability to directly judge the level of power equipment, and achieve the effect of strong practicability, failure avoidance, and accurate judgment.
CN101477158AInactive Publication Date: 2009-07-08SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER
Publication Date
2009-07-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an identification device and an identification method for abnormal heating defect class of power equipment. The identification device is formed by orderly connecting an infrared thermometer, a temperature difference calculator, a PC, and an LED display screen in series, wherein the infrared thermometer is used for measuring temperature, the temperature difference calculator is used for calculating a value of relative temperature difference, the PC is used for calculating and identifying the defect class of abnormal heating equipment, and the LED display screen is used for outputting a result of the identification. The identification method utilizes the infrared thermometer to measure three temperature values, namely the heating point temperature T1 of the power equipment, the temperature T2 of a non-fault phase and the temperature T0 of an environmental reference body, calculates the relative temperature difference delta through the temperature difference calculator, then utilizes the PC to identify different defect classes according to different power equipment, and displays the result of the identification through the LED display screen. The identification device and the identification method can reliably and conveniently judge the defect property of the heating equipment, arrange the overhaul in time, and avoid the further enlargement of fault.
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Description

technical field

[0001] The invention relates to an identification device and an identification method for abnormal heating defect levels of electric equipment, belonging to the field of electric equipment detection. Background technique

[0002] Power equipment usually works in high voltage and high current state, and some equipment defects can lead to abnormal temperature rise of equipment components. For example, there are a large number of conductor crimp connections and plug connections in power equipment. If the crimp or plug connections are not tight, the contact resistance will increase, and the temperature will rise abnormally under the action of high current. The increase in temperature further increases the contact resistance, resulting in a vicious circle, which may eventually cause the device to malfunction or even burn out. Real-time detection of the temperature of power equipment and timely defect analysis of the detected temperature are of great significance ...

Claims

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