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TRANSFORMER OIL DUCT
We have one pressboard stick (oil duct stick) equipment and 4 sets full-automatic edge fixing lines. Our daily putout is 10000 pcs duct stick to supply. We could provide 500 m oil duct strip one day.
We have one pressboard stick (oil duct stick) equipment and 4 sets full-automatic edge fixing lines. Our daily putout is 10000 pcs duct stick to supply. We could provide 500 m oil duct strip one day.
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 onto 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.
100% sulphate wood pulp
Natural-Coloured
High Purity and mechanical strength
Low shrinkage and compressibility
Good compatibility with liquid dielectrics
Insulation class A (105℃) in accordance with VDE0530.Part 1
Size and Tolerances
A = Thickness of the stick min. 3mm
B = Width of the stick min. 4mm
P = Pitch ( mm ): 25 (can be produce according to customer's requirement)
E = Pitch ( mm ): 15-20-25mm or as required
H = Duct spacing roll height : 5 up to 1280mm
L = Duct spacing roll length : up to 30M in rolls
C = Thickness of DDP:0.18mm,0.25mm,0.38mm,0.50mm
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