FIELD: test of transformer oil. SUBSTANCE: invention is related to field of control over state of oil in bushings of power high- voltage transformers and presents device to take samples of transformer oil for chromatographic analysis. It include inlet valve located in close proximity to bushing. Novelty of invention lies in structure made of tube placed into inlet valve having length and diameter determined by relationship LxS L×S ≤ 3×Vшпр3x, where L is length of tube; S is internal section of additional tube; Vшпр is volume of sampling injector. The other end of tube carries sampling valve. EFFECT: taking samples of transformer oil without deenergizing of transformer. 2 cl, 2 dwg
