CIGRE D1.52 International Working Group Meeting – "Moisture Measurement in Insulating Fluids and Transformer Insulation - an Evaluation of Solid State Sensors and Chemical Methods"

CIGRE D1.52 International Working Group Meeting – "Moisture Measurement in Insulating Fluids and Transformer Insulation - an Evaluation of Solid State Sensors and Chemical Methods"

The third meeting of the CIGRE D1.52 working group entitled Moisture Measurement in Insulating Fluids and Transformer Insulation – an Evaluation of Solid State Sensors and Chemical Methods was held at Milan Vidmar Electric Power Research Institute on 17 and 18 March 2014, organised by the Physical-Chemical Transformer Diagnostics Deparment. It comprises 37 experts from 18 countries. The institute's representatives are Mr Tim Gradnik, Mrs Biljana Čuček and Mrs Maja Končan-Gradnik. At the meeting, participants discussed the results of the implemented inter-laboratory test programme, which comprised 19 laboratories that tested samples of various insulation oils and paper insulation. Within the scope of this group, capacity sensors of various producers and the absolute chemical method of determining oil moisture content by Karl Fischer, its measuring uncertainties, calibration issues and other knowledge, relevant for the users. The group's work will be concluded in 2016 with the issue of a technical catalogue. After the works were finished, the guests visited the laboratory for physical and chemical transformer diagnostics at EIMV.