BS EN IEC 62961:2018

OVERVIEW:

What is BS EN IEC 62961-Interfacial tension of insulating liquids about?

BS EN IEC 62961 is a transformer quality control standard based on interfacial tension measurements.

BS EN IEC 62961 establishes the measurement of the interfacial tension between insulating liquid and water by means of the Du Noüy ring method close to equilibrium conditions. In order to obtain a value that provides a realistic expression of the real interfacial tension, a measurement after a surface age of approximately 180 s is recorded.

Who is BS EN IEC 62961-Interfacial tension of insulating liquids for?

BS EN IEC 62961 on insulating liquids is relevant to:

• Manufacturers of insulating liquids
• Manufacturers of equipment and machinery using insulating liquids
• Electrical engineering industry
• Mechanical and electrical engineers
• Quality control and testing agencies

Why should you use BS EN IEC 62961-Interfacial tension of insulating liquids?

Interfacial tension describes adhesive forces (tension) between the liquid phase of one substance and either a solid, liquid, or gas phase of another substance. The interfacial tension of insulating liquids changes with time depending on the type and nature of the ageing products. It is an important concept in the field of electrical and industrial applications, that focuses on emulsion stability.

In this regard, BS EN IEC 62961 provides you with a method to determine the deteriorating health of the transformer as oil degrades and contaminants are introduced. As a result, you can efficiently test the quality and performance of insulating liquids.