أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
the inswer is in french: c'est un huile isolant
Mainly two typs of transformer oil is use they are(1)Paraffin based transformer oil (2)Naphtha based transformer oil
With Regards
Niraj Mani