• Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film

Metallization for Inner Series Patterns

Series circuits of capacitors are not only realisable by discrete components but also directly integrated into the metallization. A compact capacitor wound element can be achieved, suitable for the highest operating voltages, using a detailed pattern of free margins. 

An inner series design is generally the ideal solution if:

  • the increase of the operating voltage of the capacitor is limited by the thickness of the dielectric material (film thickness not available, too high field stresses at edges and surfaces)
  • the field stress (V/µm) of the dielectric material is to be limited, e.g. to avoid corona discharge safely

 

Steiner offers a wide spectrum of free margin sequences, in band or oil masking technology, that can be combined with every metallizing type plus segmented lines.

2-fold series patterns are normally symmetrically laid out and typically wound by using one film with a centre margin and the other film with margins on both sides.

Multiple series patterns require a precise calculation, including the winding off-set, to ensure the voltages inside the capacitor are spread equally.

The example above represent a 13-fold series pattern of a film width of 120mm.

The margin sequence:
F2-M16-F2-M16-F2-M16-F2-M16-F2-M16-F2-M16-F2-R10 = 120mm
results in part capacities of an active area of each 7mm.

We will gladly support you during the design of series patterns for your applications.