Research On The Quality Control And Improvement Of AT Transformer In Hatie

Electrified railway in China since 1958, began to build. With the continuous development of China’s electrified railway construction pace, and now has become the main force of electrified railway freight transport and passenger transport, economic and social benefits are considerable. The electrified railway safe and stable operation, reliable quality and can not be separated, in good operating condition of powered devices. Operation states of the power equipment also will directly determine the stability of the electric railway transport order in which the quality of testing work AT transformer has become a guarantee reliable operation of the power supply network.Harbin Railway Bureau is to ensure that the power to detect an important sector of Harbin Railway Bureau, power equipment operation, inspection work bears the Harbin Railway Bureau Harbin-Dalian, Harbin-Dalian railway and electrified Binzhou, Bihac high-speed rail power supply equipment. With the rapid development of the Harbin Railway Bureau railway electrification, power quality testing increasingly heavy work, from the detection equipment, testing personnel structure, leakage detection violent environment some problems to be solved. In this paper, based on this background, the AT transformer quality testing study the issue.Thesis mainly consists of four parts:Chapter One Introduction. Set forth in the high-speed rail rapid development of today, the device detects the quality of traction network has been essential to the railway transport safety and order, supply of quality testing equipment control has become increasingly important. This section describes the background and significance of research, research methods, including literature research, systems analysis, combining theory with practice, field research and data analysis arrangement diagrams, and research papers overall structure was introduced.The second chapter of the AT power supply detection transformer detection Quality Status and Problems. By detecting the status of power quality testing of the basic situation and AT transformers, analysis and detection AT transformer power supply problems in detecting lies. Through two test cycles tracking analysis, we found the quality of the inspection report accuracy and timeliness are problematic. Specific performance is not complete in the test items, test data accuracy is not high, the test report issued by the time and release time lag issues. Use Pareto law affecting AT transformer testing the quality of a range of issues for analysis.The third chapter analyzes the AT power supply transformer testing the quality of detection cause of the problem. The main problem of this chapter based on the last chapter, the underlying causes of the problem of the formation were analyzed, based on analysis of data, obtained detect equipment problems, testing personnel, testing environment is the main cause of the above problems. Further issues that affect the quality of testing work carried out detailed analysis of the reasons for the lack of refinement of detection equipment, old, precision is not satisfied; the age structure of testing personnel, quality of service, quality of the industry; inadequate to detect the environment, including did not sign the contract on the detection and user detection, no on-site detection of quality supervision program, no inspection records and test reports document management and other factors, root out the source of the problem to find the root cause of the problem formation.Chapter IV process control and power improvements AT detection transformer detection quality. To solve these problems, the development and implementation of self-verification method of acquisition of equipment and existing equipment, rational distribution of staff restructuring, job rotation system and the establishment of appropriate personnel training system, the establishment of quality inspection before the contract review process and implementation ways to build quality supervision procedures and implemented quality testing methods in the process of establishing procedures and control aspects of the recording test results reporting procedures and methods implemented after quality testing, targeted put forward the corresponding quality control and improvement measures.