Cardboard cylinders
Single-layer cardboard cylinders are made of electric board (GOST 4194-88 or IEC 60641-3-1) for oil immersed transformers and apparatus.
Dimensions, mm
|
Ø D, mm |
H, mm |
S, mm |
|||
|
min |
max |
min |
max |
min |
max |
|
100 * S |
on request |
on request |
2 000 |
1,0 |
6,0 |
Dimension δ can be provided on request.
Multi-layer cardboard cylinders are made of electric board (GOST 4194-88 or IEC 60641-3-1) for oil immersed transformers and apparatus. Max. height Hmax is 2000 mm, max. thickness is 24 mm.
Cylinders are used as support components for power transformer windings and have high mechanical and electrical properties. Also cylinders can be part of insulation barrier which divides long insulation distance to smaller one.
Cylinders are delivered as:
1) in the unfolded state, not glued, with bevelled edges;
2) in the folded state, glued on a mandrel.
