Study on the Influence of Different Types of Insulating Oils on the Temperature Rise Characteristics of Transformers
Oil-immersed transformers have a wide range of applications in power systems,while different properties of insulating oils have different effects on the temperature rise characteristics of transformers.Simulation analysis is used to analyse the temperature rise characteristics of the transformer when natural ester insulating oil and mineral insulating oil are used.The results show that the temperature rise of the winding of natural ester insulating oil is greater than that of mineral insulating oil by 4.7 ℃,and the temperature is slightly increased,and at the same time,the use of natural ester insulating oil combined with insulating cardboard can improve the temperature rise limit of the transformer by 10 K.Natural ester insulating oil has a better temperature rise characteristic than that of mineral insulating oil,which can better improve the insulation and cooling performance of the transformer in the process of transformer use,and ensure the long-term and stable use of the transformer.
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