oil-cooled tra former 油冷变压器

air cooled tra former 空冷式变压器

air-cooled tra former 风冷变压器

self-cooled tra former 自冷变压器

water cooled tra former 水冷式变压器

dry self-cooled tra former 干式自冷变压器

forced oil cooled tra former 强迫油冷变压器

oil-immersed self cooled tra former 油浸自冷式变压器

oil-immersed forced-air cooled tra former 油浸风冷式变压器