For R&D scientists and product formulators, a deep understanding of the technical specifications of capacitor dielectric fluids is fundamental to designing high-performance and reliable capacitors. These fluids are not mere fillers; they are active components that dictate crucial electrical and thermal characteristics. This technical deep dive focuses on the essential properties that define the quality and suitability of dielectric fluids like Phenyl Xylyl Ethane (PXE) oil.

The primary function of a dielectric fluid in a capacitor is to act as an insulator between the conductive plates, thereby increasing the capacitance and preventing electrical breakdown under high voltage stress. The dielectric strength, often quantified by the breakdown voltage, is perhaps the most critical parameter. A higher breakdown voltage indicates the fluid's ability to withstand greater electric fields without electrical conduction. For instance, capacitor insulating oils commonly exhibit breakdown voltages exceeding 70 kV.

Another crucial specification is the dielectric dissipation factor, also known as the loss tangent (tan δ). This value represents the energy dissipated as heat within the dielectric material when subjected to an alternating electric field. A low dissipation factor is highly desirable, as it minimizes energy loss, reduces heating, and improves the overall efficiency of the capacitor. Ideally, values should be in the order of 0.001 or less at operating temperatures.

Electrical volume resistivity is another key metric, measuring the fluid's resistance to direct current flow. A high volume resistivity (e.g., ≥ 1.0*10^12 Ω.m) signifies that the fluid is a very poor conductor of electricity, which is essential for maintaining the stored charge and preventing leakage current. This property is directly related to the purity of the oil and the absence of ionic contaminants.

When formulating or specifying dielectric fluids, scientists often consider the compatibility with other materials within the capacitor, particularly the dielectric film. PXE oil, for example, is noted for its excellent compatibility with polypropylene films, ensuring the long-term integrity of the insulation system. As a capacitor dielectric fluid supplier, NINGBO INNO PHARMCHEM CO.,LTD. ensures that our products like PXE oil meet these rigorous technical demands.

Understanding these technical specifications is vital when you are looking to buy capacitor insulating oil. If you need to get a quote for dielectric fluid, our team can provide detailed technical data. We are committed to supplying high-purity insulating oils from reputable manufacturers, and as an experienced CAS 6196-95-8 supplier, we can assist your R&D efforts with premium materials. Partner with us to source the best dielectric fluids for your capacitor applications.