... filtering the unpurified new oil, such as transformer oil, instrument transformer oil, circuit breaker oil, capacitor oil and so on.It ... over current, phase lacking, overheat ,liquid level ,over pressure, power failure, oil lacking ,incorrect operation and so on Utilize ... (PPM) %≤0.2According to DL 423 method4Cleanliness (NAS level)≤5According to SD313 MethodOrder information:Item Art. No. VOF ...