ZYR series utilize physiochemical means to recover deteriorated transformer oil and breaker oil while remove the acid content, suspended matter and precipitated residues from the oil. It utilizes a special purification, which allows transformer to stay running in normal manner without switch off of power and change of oil. The basic content and anti-oxygenic property of oil remain the same after treatment, and is brought back to the specification of new oil; Insulator property and safety of equipment are enhanced while cost is reduced by 90% compared with conventional way of oil-change. It is recommended to use the transformer oil treatment firstly, when the oil withstand-voltage is treated at an acceptable range by the transformer oil treatment, and then use the BZ device; you will find that the effect will be better