The Standard for the Electric Power Industry, DL/T 385-2010 (English Edition), was published on January 1, 2010. This standard is dedicated to the detection methods of tendency towards electrical conductivity in transformer oil. It aims at providing a reliable and systematic approach for assessing the condition of transformer insulation systems through analyzing the dielectric properties of the insulating oil.
The document elaborates on various techniques including but not limited to, frequency response analysis, high-frequency capacitance and resistance measurement, as well as dissolved gas analysis in conjunction with electrical conductivity tests. These methodologies enable engineers and technicians to diagnose potential issues such as moisture ingress, overheating or degradation of insulation materials early before catastrophic failures occur.
The application scope of this standard encompasses all types of power transformers including those utilized in transmission networks up to extra-high voltage levels, distribution substations, industrial facilities, and large-scale generation plants. It provides detailed guidelines for the selection of appropriate testing equipment, calibration procedures, interpretation of results, and recommendations on corrective actions based upon findings.
*** Please note: This description may not be accurate, please refer to the official documentation.
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