Transformer oils have two important functions: to be an electric insulator and to act as a coolant for the transformer. Effective cooling will increase the lifetime of the transformer, so the cooling liquid must be able to transfer as much heat as possible.
Viscosity and density at different temperatures from -40°C to 100°C are essential for the characterisation of insulation oils (e.g. measurements according to IEC 60296, ASTM D3487) and can be measured with the SVM 3001 fast and accurately.
Download this application report from Anton Paar which describes how to test oils according to numerous standards.
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