Exploration And Practice Of Diagnosis And Treatment Of Abnormal Temperature Of Hydrogenerator

Electric energy is the main energy source in the world,and hydropower is an indispensable part of China's electric energy.The effective development of hydropower can save non-renewable resources and reduce the emission of pollutants and greenhouse gases.It has a huge impact on ecological civilization as a clean renewable energy source,which has far-reaching significance in developing ecological,environmental,economic fields and so on.Therefore,a vigorous development of hydropower is important for China's energy strategy.Fault diagnosis is a comprehensively technical job.There are various reasons for the failure of the hydropower station system.When faults are found,it is necessary to identify them and treat them promptly,accurately and effectively.Therefore,this is a subject worthy of in-depth study.In the case of failure of water turbine unit,how to analyze and deal with the existing equipment is more important.As an important part of the hydropower station system,the working condition of the Hydraulic turbine-generator unit plays a decisive role.With the continuous development and update of the power equipment technology,the technical indexes of the hydro-generator set are also being continuously optimized,and the market demand for the large-capacity units is also increasing.So the technical problem of generator temperature anomaly caused by the increase of thermal load and electromagnetic load is highlighted.How to control the unit temperature effectively is the most important part in the hydropower technology.Finding out specific cases of abnormal turbine generator temperature in the maintenance of hydropower station,this paper explores solutions for them to ensure the safe and reliable operation of the turbine generator.Firstly,the cause of the abnormal temperature of the generator is studied.Then the fault diagnosis of the generator is made according to its actual situation.Finally a solution is proposed through experiments of verifying results of the analysis.Based on analysis and treatment for three times,the cause of unit failure has finally been found.With the completion of technical transformation of the unit,relevant tests have been carried out on the unit,and finally the problem of abnormal temperature of the unit has been solved satisfactorily.