Specifically, the price of transformer oil varies with the origin, category, suitable model, product quality and product performance.
When selecting transformer oil, we must first consider the performance of transformer oil. The performance of transformer oil is affected by the following factors:
The influence of transformer design on the performance of transformer oil in operation:
The transformer coil turn-to-turn distance and the distance between high and low voltage coils are related to the transformer electric field strength, and the electric field strength affects the oxidation stability of transformer oil; the size of transformer body affects the oil loading of transformer; the design of cooling mode is directly related to the operating temperature and circulation speed of transformer oil. Thus affecting the oxidation stability and electrical performance of the transformer.
Quality of new transformer oil:
Transformers with high quality transformer oil are recommended to ensure long service life and to sample to verify the typical quality data of the transformer oil purchased, while retaining these initial data for comparison of the data sampled during operation, which is very important for judging the change trend of transformer oil.
When the newly purchased transformer oil needs to be mixed with the used oil, the oil mixing test should be carried out strictly according to GB / T14542 "Guidelines for Maintenance and Management of Transformer Oil in Operation". The mixed oil test can be used before being passed.
Influence of transformer operation condition on transformer oil performance in operation:
The most important factor affecting the transformer's oil capability is the transformer's running condition. The operation temperature of transformer is too high, partial high temperature overheating, partial discharge and leakage will accelerate the thermal oxidation reaction of transformer, which further affects the electrical performance of transformer oil.
Therefore, the price of transformer oil products will be affected by the different types of biotransformers, the different quality of products and the different applicability of products.