Transformer Oil Duct Stick

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Oil duct strip provides duct for the flow of the cooling oil in layer and strip windings in distribution power transformers. It is manufactured by bonding transformer board sticks on to insulating paper or single-coated diamond dotted paper.

Duct strip has the excellent transformer oil impregnation feature, it has high compressive strength more than corrugated pressboard which is the old technology, it's used at high temperature condition and it could be improved the circuit strength.