Fault Analysis And Diagnosis Of A 500 KV Main Transformer Of Power Plant

Power by power system to the users, mainly through the power transformer. Transformers in the system for voltage fluctuation, power distribution and transmission of important role. Because of the transformer in the design, production, installation, maintenance, repair and other legacy problems in the process of the operating state of transformer will change, and in the process of transportation, loading and unloading will create a variety of problems. Thus transformer stable operation determines the security of power system, the fault time and minimize transformer is the key of the guarantee system running smoothly. At the same time, the specialization degree and the technical level of operators lack of also to bring hidden trouble to the safe operation of transformer.Transformer is very important in power system and the safe operation of the indicators or not is an important index to determine the safety of power grid. According to the operation condition of transformer, carries on the corresponding parameter detection, to avoid the transformer fault plays an important role. Transformer fault is long time not found abnormal transformer parameters, found that slight change failed to give enough attention and dealing with malignant development not only lead to failure. Therefore, transformer in power system with theoretical depth research, through the actual operation to conduct a comprehensive grasp, the smooth running of the power system transformer is of great significance. This not only improves the security and stability of electric power, more can provide solid guarantee for the efficient and economic development of the whole society.This topic will be around the basic structure and operation characteristics of transformer, analysis and summing up the causes of transformer faults and fault state, and according to the fault state detection method is put forward as well as the disposal of type. Aimed at to come into contact with the state of transformer faults in practical work, combined with gas analysis of transformer fault detection and judgment, to ensure that the test results intuitive and correctness. In addition, the significance of this topic pointed out the correct maintenance of the transformer. Hope that the research work for the power plant actual, summed up the quickly found that the transformer fault type and the reason and efficient processing method based on the situation.