Tradition More than 50 years of experience in specialised tests of physical and chemical properties of materials for electrotechnical applications. More than 30 years of development and diagnostic physical, chemical and dielectric tests of transformer oil and paper for assessment of the condition of transformer insulating system. Laboratory for Physical and Chemical Testing • Physical, chemical and dielectric oil and paper tests • Determination of the degree of transformer oil contamination (moisture, particles, PCB) • Chromatographic analysis of gases dissolved in transformer oil • Determination of the degree of polymerisation and moisture content in paper insulation • High-performance liquid chromatography (HPLC) determination of furan derivatives in transformer oil • Assessment of the remaining life of oil and paper insulation • Determination of the degree of possible transformer oil purification • Compatibility tests of various materials used in transformers with transformer oil Activities The basic activity of the Laboratory is the testing of insulating liquids and paper for electrical insulation in accordance with requirements of national and international standards (HRN, EN, IEC, ISO, ASTM). • Power, instrument and special transformers • On-load tap changers and circuit-breakers • Oil cables • Oil management • Expert interpretation of the results of transformer oil and paper insulation tests in the case of emergency operating conditions • Expert analyses and consulting concerning ordering new electrotechnical materials and their applications • Studies on investigation and development of new test methods and condition diagnostics of transformer insulating system • Subject-specific user training KONCAR Electrical Engineering INST

Studies From 1992 more than 40 papers published on the testing and condition monitoring of transformer oil and paper, transformer insulating system, compatibility of materials and diagnostics of the condition of transformer insulating system. Active participation in the work of HRO CIGRE and HZN committees. Accreditation Croatian Accreditation Agency (HAA): Accreditation Certificate No. 1174/09 Laboratory for Physical and Chemical Testing is competent according to the requirements of HRN EN ISO 17025: 2007 (ISO/IEC17025: 2005 + Cor. 1:2006; EN ISO/IEC17025:2005+AC.2006) for testing of physical...