Research And Application On The Infrared Diagnostics Of Electrical Equipment Testing

In power system, power supply system to ensure the security, stability, reliable operation of power management is the fundamental goal of CBM can reduce equipment maintenance outage time and improve reliability. State maintenance is based on state test data to assess equipment "health status", according to the appropriate maintenance strategy, accurate diagnosis and assessment of the health status of the equipment, equipment fault diagnosis is the key technical condition maintenance. Infrared detection and rapid development of diagnostic techniques, for equipment condition monitoring and fault diagnosis provides a new way.There external or internal electrical failure, often accompanied by abnormal local or general overheating or abnormal temperature distribution, this corresponds to change in infrared images. Infrared detection by infrared radiation detection equipment surface thermal state of the signal characteristics received equipment to malfunction of equipment availability, fault properties, there is the location and severity of discrimination. Infrared detection technology can be detected various types of equipment overheating fault external contact, and can more effectively detect the defects inside the device diversion loop and insulation failure. Infrared detection technology for its safe, accurate temperature measurement, non-contact and many other advantages more and more widely used, including infrared thermal imaging technology for real-time display two-dimensional surface temperature distribution and change of circumstances as the development of infrared detection technology direction. By infrared thermography for electrical equipment condition monitoring and diagnosis as the electricity sector an effective mean of detection.Based on infrared thermal imaging technology for the electrical equipment testing and fault diagnosis, state of maintenance of electrical equipment designed to provide a reliable theoretical basis. The paper describes the condition monitoring and fault diagnosis technology, electrical equipment temperature infrared detection of the basic theory and the current use of some of the temperature monitoring technology and a corresponding comparison in this paper, this research goals; second on basic research involving theory, concepts, laws and other basic theory is summarized and introduced. By studying the development of infrared imaging system, composition, working principle and its main performance parameters, a detailed analysis of the factors affecting the accuracy of infrared detection, and specific factors proposed methods for reducing errors and precautions. On this basis, combined with infrared thermal imaging technology in the electrical equipment is widely used in fault diagnosis of the current status, the electrical equipment, heat sources, electrical equipment failure in the development and evolution of fault diagnosis used infrared diagnostic method and determine the basis of infrared thermography on electrical equipment, external and internal fault diagnosis was introduced in detail the electrical connection or association within the conductive body bad, bad, and some dielectric unconventional properties of the particular fault and the corresponding characteristics of infrared thermal images relations, and provide various types of electrical equipment defects typical infrared map. This research work for the power sector using an infrared thermal imaging technology for condition monitoring of electrical equipment has a certain reference.