DMD
Key words:
Oil-Immersed Transformer Insulating Materials | Mutual Inductor Insulation Materials
Classification:
Product Description
Dacron-Mylar-Dacron (DMD) is made of composite polyester film with 2 layers of non-woven fabric, featuring better mechanical and electrical performance, and it is mainly applied in the slot-to-slot and phase-to-phase insulation in the high and low voltage motors as well as the interlayer insulation or end insulation in transformers.
Storage:
It shall be stored in a dry and clean room with a temperature not exceeding 25℃ and must be kept away from fire sources, heaters, and direct sunlight.
Serial Number |
Performance |
Unit |
Requirements |
|||
1 |
Thickness |
mm |
0.15 |
0.18 |
0.20 |
|
2 |
Thickness tolerance |
% |
±15 |
|||
3 |
Quantitative |
g/mm2 |
145 |
190 |
220 |
|
4 |
Quantitative tolerance |
% |
±12 |
|||
5 |
film thickness |
Μm |
50 |
75 |
100 |
|
6 |
Tensile strength |
Vertical |
N/10mm |
≥ 110 |
≥ 140 |
≥160 |
Transverse |
≥90 |
≥ 105 |
≥120 |
|||
7 |
breakdown voltage |
kV |
≥6.0 |
≥ 7.0 |
≥ 9.0 |
|
8 |
Temperature Index (T. I) |
-- |
≥ 130 |
Zhongling insulation material
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