What Are The Classifications Of Oil-immersed Transformers?

GNEE Steel oil immersed power transformer

Oil-immersed transformers are classified according to the number of phases: the number of phases of the transformer is determined by the number of windings, and the selection of the iron core structure is determined by comprehensive factors such as the reasonable layout of the windings, saving materials, and meeting the transportation height. The bypass can reduce the fifth and seventh harmonics in the leakage flux and excitation current, thereby reducing losses.

Single-phase: single-phase two-column stacked iron core, single-phase single-column side-yoke four-column core, single-phase double-column stacked iron core, single-phase radial stacked iron core, etc., usually used in low-voltage, high-current or small-capacity transformers.

Three-phase: Three-phase column-type stacked iron core, three-phase side-yoke-type five-column iron core, three-phase double-frame stacked iron core, three-phase reactor stacked iron core and other structures, which can be used to raise and lower the voltage of the three-phase system at the same time.

oil immersed distribution transformer