 Strips and Spacers are mainly used for larger insulation or coils and windings.They provide proper & accurate oilway.
1. Strips
The charactersare below:
High mechanic strangth
High electtric?strangth
accurate size
Main Property Standard Value
Property |
Unit |
Standard Value |
Moisture Content |
% |
¡Ü7.0 |
Density |
g/cm3 |
1.15¡«1.3 |
Shirinkage TD |
% |
¡Ü6.0 |
|
% |
¡Ü1.0 |
Compressibility |
% |
¡Ü4.0 |
Main types of strips made by our company are as follows: Rectangular Strips, T- type Strips, Trageoidal Strips, Abnormity Strips.
2.Spacers
The spacers made by our company are the punched process mainly.Specification of Spacers should be fecided according to the drawings of order
Corrugated Insulation Boards |
| |
- Corrugated boards are commonly used as oil gap insulation for transformer. Its advantage lies in easy assembly.it improves the distributiom of oil channels in solid insulation materal,comparing with the strips radially arranged. In the oil channel of corrugated board,the solid insulation is very even.There is no surface which is perpendicular to electric field,therefore it can increase the strength of the oil channels by 15%,without losing reliabity.The corrugated boards in our company are produced by hot pressing.They have following advantages:Higher mechanical strength; Superior electric character; Stable shape and, Accurate size. Duct cooling spaces will be constant, uniform, parallel and standardized.
- Cuts labor time in installation.
- High voltage insulation, UL-approved materials are available such as Nomex?, vulcanized fibre, DMD, etc.
- Corrugated transformer insulation can be used for "Pack-out" and "End-Fill" applications.
- Eliminates the need for radial and axial spacers.
- Enables increased power loading with no movement & remains more stable under transformer surges.
- Allows direct winding contact for transformer winding insulation.
- Increases dielectric insulation as compared to insulation stick design.
youngman has developed a special corrugated insulation to provide a more cost-effective cooling duct and barrier insulation for transformers. Nomex , Vulcanized youngman Fibre? and other suitable materials are now available.
youngman square, rectangular or sinusoidal insulation in special corrugated form is a convenient, labor-saving option when used in transformer winding. Many small to large sizes are produced for instrument toroid coils through large power and distribution transformers.
Our special roll and sheet insulation material provides additional insulation in winding and is compatible with common resins and varnish systems. Nomex? has UL component recognition #E34739A. Because of its unique square or sinusoidal configuration, transformer design can be more standardized, allowing uniformity in winding and construction while providing cost effectiveness and flexibility for transformer engineers
The Range of Dimension and Tolerance of the Corrugated Board
Dimensions |
Tolerances |
Thickness |
1.0mm |
? |
1.5mm |
? |
2.0mm |
? |
Width(W) |
¡Ü950mm |
¡À3 |
Heigh(H) |
4.5¡«7mm |
¡À0.5 |
Length(L) |
3000 |
¡À50 |
Pitch(P) |
20 |
¡À2 |
Main Property standard of corrugated boards in our company
Main Property Standard
Property |
Unit |
Standard Value |
Average |
Special |
Moisture Content |
% |
£¼7.0 |
/ |
Ash Content |
% |
£¼0.8 |
/ |
Conductivity of Aqueous Extract |
¦Ìs/cm |
£¼10.0 |
/ |
Yield Strength |
kg/cm2 |
£¾11.0 |
£¾9.0 |
|
Edge-Insulating Angle Rings
Suitable for insulating top and bottom coil.If it is placed?in parallel with the potential,it shortens insulation distance of the coils.
Dimensions and Tolerances
W |
H |
r |
T |
1.0 |
1.5 |
¡À2 |
¡À2 |
¡À2 |
¡À0.1 |
¡À0.15 |
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