Oil tester Ijj (d)-80 series insulating oils dielectric strength automatic tester is a new generation full automatization bdv testing instrument developed on the basis of the hcj-9905a model, which is designed according to the international standard iec-156 and national standard gb507-86 (insulating oils- determination of the dielectric strength) requirements, and meet the various usersf+ feedback and opinions. Using setting firstly, start up testing secondly method, it is adopted scm as the leading, the whole testing procedure automatically run and controlled by the microcomputer. It is simply operated and convenient used.