F-grade epoxy prepreg material of DMD for Electrical Insulation 300KV transformer
DMD FOR TRANSFORMERS
PRODUCT DESCRITION:
DMD is used for transformers
DMD, or Dacron Mylar Dacron, is a type of electrical insulation material that is commonly used for transformers. It is a three-layer composite material consisting of two layers of polyester film (Mylar) with a layer of nonwoven polyester fiber (Dacron) in between.
DMD offers excellent electrical and mechanical properties, making it ideal for use in transformer insulation. It has a high dielectric strength, good thermal stability, and excellent resistance to moisture and chemicals. DMD also has good tensile strength and tear resistance, which makes it durable and long-lasting.
In transformer applications, DMD is typically used as a layer of insulation between the transformer windings. It helps to prevent electrical arcing and short circuits, while also providing mechanical support to the windings. DMD is also used as a slot liner to insulate the slots where the windings are placed.
Overall, DMD is a reliable and effective insulation material that is widely used in transformer manufacturing. Its combination of electrical and mechanical properties make it an ideal choice for this application.
Various sizes for option:
| Technical Data |
| | | | |
| | | | 0.15 | 0.17 | 0.20 | 0.25 | 0.32 | 0.37 |
| | Nominal weight and tolerance | | 140±20 | 190±28 | 225±33 | 300±45 | 350±52 | 425±63 |
| | Nominal thickness of film | | 50 | 75 | 100 | 150 | 190 | 250 |
| | Tensile Stength MD no bending MD after bending TD no bending TD after bending | | ≥80
≥80
≥80
≥70 | ≥120
≥105
≥105
≥120 | ≥140
≥120
≥120
≥100 | ≥190
≥170
≥150
≥130 | ≥270
≥200
≥200
≥150 | ≥320
≥300
≥300
≥200 |
| | Elongation MD no bending MD after bending TD no bending TD after bending | | ≥15
≥10
≥20
≥10 | ≥15
≥10
≥20
≥10 | ≥15
≥10
≥20
≥10 | ≥15
≥10
≥15
≥10 | ≥5
≥5 | ≥5
≥5 |
| | | | ≥6 | ≥7 | ≥9 | ≥12 | ≥15 | ≥18 |
| | Bonding strength at room temperature | | |
| | (155±2)ºC10 Bonding strength at 155±2ºC for 10 min | | No dlamination,blister and drainage |
Packing hoto:
ISO certificate:
FAQ:
1. Are you factory or trading company?
We are factory, and we have two factories in China, one is in Hubei province, another is in Guangdong province, and we also have a trading company in Guangzhou city, welcome to visit us.
2. What is the price of your DMD?
Pls let us know the exact size that your want so that we can offer you the best price
3. What payment terms can you accept?
Our terms of payment is T/T and L/C at sight
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