use
　　The machine is mainly suitable for purifying more than 500 kV power transmission and transformation equipment with insulating oil, may also used for 500 kV power transmission equipment with insulating oil and all sorts of electrical equipment with insulating oil purification processing.
　　This machine is mainly working principle: in the vacuum system is formed within the low and high vacuum area vacuum area, so as to achieve the separate water, gas and the purpose of the impurities.

Characteristics:
　　Water cut than 50 mg/kg, containing gas than 12%, 30 kV quartile breakdown voltage, several times after purification treatment by this machine can reach the following index:
　　Residual moisture than 3 mg/kg (namely 3 PPm) 0.1% or residual gas
　　Breakdown voltage of 75 kV quartile nominal filtration accuracy than 3 μ m
　　When configuration in addition to acid when device, with the following performance
　　Acid value: more than 0.03 mgKOH/g polarity material removal rate: more than 98% above ．