What is the acceptable power factor for new mineral oil at 100°C for 230kV rated equipment?

The acceptable power factor for new mineral oil at 100°C for 230kV rated equipment is 0.30%. This value is critical as it indicates the dielectric strength and insulation properties of the oil used in high-voltage transformers and equipment. A power factor of 0.30% reflects the quality and cleanliness of the insulating oil, confirming that it has low levels of moisture and dissolved gases that could affect its performance.

In high-voltage applications, monitoring the power factor is essential for ensuring the reliability and longevity of the equipment. A power factor above this threshold could signal the need for further investigation into the dielectric fluid's condition or the presence of contaminants. Thus, maintaining the standard of 0.30% is vital for safe and efficient operation at high voltages like 230kV, ensuring that the equipment meets stringent industry standards for insulating materials.