Oil Dissipation Factor (Tan-Delta) & Resistivity Test System

Oil suffers from electrical and mechanical stresses while a transformer is in operation. In addition there are contaminations caused due to chemical interactions with windings and other solid insulations, catalyzed by high operating temperature. As a result the original chemical properties of Transformer Oil changes gradually, rendering it ineffective for its intended purpose after many years. Hence this oil has to be periodically tested to ascertain its basic electrical properties, and make sure it is suitable for further use, or necessary filtration/regeneration has to be done. Testing of DC resistivity and Tan-delta/Dissipation-Factor of such insulating Oils is one of the most critical tests to determine the Oil condition. Power Electronical provides instruments to achieve this objective of accurately measuring the Power-Factor and Volume Resistivity of Insulating liquids