On-site transformer oil testing

Recently time consuming testing procedures in test labs have been replaced by on-site oil testing procedures. There are various manufacturers of portable oil testers including Baur, HV Diagnostics and Megger.

With low weight devices in the range of 20 to 40 kg tests up to 100 kV rms can be performed and reported on-site automatically. Some of them are even battery-powered and come with all sorts of accessories.