变压器油基础油在低热下析出气体性能的研究

采用气相色谱法考察变压器油基础油在低热条件下油中溶解气体组分的变化情况。结果表明:变压器油基础油在真空脱气前后、不同芳烃含量和不同原油基属的情况下，油中溶解气体组分含量与温度、储存时间、油中溶解氧含量直接相关；未脱气的油中溶解气体组分含量随芳烃含量的增加而增加，但脱气后油中溶解气体组分含量与芳烃含量没有明显相关性，且与基属无关。

STUDY ON GASSING CHARACTERISTICS OF TRANSFORMER BASE OIL UNDER THERMAL STRESS AT LOW TEMPERATURE

The changes of the gaseous components dissolved in transformer base oil under thermal stress at low temperature were investigated by gas chromatography method.Test results show that under the conditions of transformer base oils having various aromatic contents and from different crude base,prior and post to vacuum degassing,the contents of dissolved gases in oil are related with the content of dissolved oxygen in oil,storage temperature and storage time directly.Prior to vacuum degassing,the contents of dissolved gases increase with the increase of aromatic content in oil;post to vacuum degassing,the contents of dissolved gases have no direct relationship with aromatic content or with crude base.