At the core of every Duelund paper-in-oil capacitor is a controlled mechanical process.
Copper foil and dielectric paper are wound under constant tension, ensuring consistent geometry and layer alignment. This step defines the electrical behavior long before impregnation and final assembly.
Using original Siemens PIO factory industrial winding equipment, the process remains fundamentally physical — not simulated, not approximated.
Every parameter here matters:
– tension
– alignment
– layer consistency
Before oil. Before potting. This is where the capacitor is actually made.
