EPSILON+ Dielectricity Meter for measurement of dielectric fluid properties (Conductivity, Permittivity, DDF)

New Challenges for e-fluids and electric driveline development

Due to the advancing electro and hybrid mobility, lubricants and operating liquids need to meet new requirements regarding their electrical properties. Modern synthetic gear oils or bearing greases are not perfect isolators – even most of the oils used for combustion engines are already characterized by a minimum level of electrical conductivity. This helps to decrease overvoltages and electrical breakdowns which are for example caused by static charging within gears or bearings.

Electric drives are formulating new challenges for e-fluids: in the presence of high voltages and variable frequencies, knowledge of the complex fluid impedance is useful in order to assess the performance of the respective substance when exposed to an electrical field.

In addition to e-mobility, there are numerous other application areas for the EPSILON+, e.g. the examination of rolling bearing greases used for wind turbines or railway technology. Measurement of the dielectric properties such as the relative permittivity (dielectric constant) or the dielectric dissipation factor (DDF/tan δ) is also relevant for the development and operation of transformers and large-scale electro-technical applications in which oils are used e.g. as a coolant.

With EPSILON+, flucon presents a powerful laboratory instrument for capturing the essential dielectric parameters of fluids as a function of the temperature.