What is PD IEC/TR 62874– Paper thermal degradation in insulating mineral oil about?
PD IEC/TR 62874 is an international standard that focuses on fluids for electrotechnical applications.
PD IEC/TR 62874 is a technical report that provides guidance for the estimation of consumed thermal life of transformers' cellulosic insulators, through the analysis of some compounds dissolved in the insulating mineral oil.
PD IEC/TR 62874 states a comparison between analytical results of 2-furfural (2-FAL) and carbon oxides and their correspondent typical values estimated for different families of equipment to give information on the estimated thermal degradation of papers.
Who is PD IEC/TR 62874 - Paper thermal degradation in insulating mineral oil for?
PD IEC/TR 62874 on Paper thermal degradation in insulating mineral oil is relevant to:
- Electrical equipment manufacturer
- Manufacturers of electrotechnical equipment
- Electrical industry
- Electrical engineers
Why should you use PD IEC/TR 62874 - Paper thermal degradation in insulating mineral oil?
The cellulosic solid insulation of transformers and other electrical apparatus is subject to thermal degradation during their operational lifetime. This results in a progressive loss of paper’s mechanical properties, such as tensile strength, which are related to the duration of the technical life of the equipment.
During its thermal degradation process cellulose forms several by-products, some of which may be detected by means of insulating oil’s chemical analysis. The concentration and rate of increase of those by-products can be used as a tool to estimate the progress of paper thermal degradation in transformers and other electrical apparatus in service.
PD IEC/TR 62874 is based on the evaluation of cellulose aging by-products content in insulating oil, and their rate of formation during the life of the oil-immersed electrical equipment.
PD IEC/TR 62874 provides three main processes of degradation that is hydrolysis, oxidation, and pyrolysis. It specifies the impact of temperature, the impact of humidity, and oxygen, operational parameters influencing paper thermal aging, monitoring protocol and evaluation process these features ensures the quality of thermal life.
PD IEC/TR 62874 is beneficial as it enables the credibility and reliability of the product, As compliance with PD IEC/TR 62874 offers stability that values the quality of heat transfer fluid for determination of paper thermal degradation in insulating mineral oil.
