Ключевые слова:
Oil-filled electrical equipment, Oil-immersed transformers, Power transformers, Electric reactors, Instrument transformers, Transformers, Electrical equipment, Electrical testing, Insulating oils, Impregnated materials, Liquid electrical insulating materials, Oils, Dissolved gases, Gas analysis, Determination of content, Gas chromatography, Sampling methods, Samples, Sensitivity, Reproducibility