PTFE Tubular Bus Bar

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PTFE Tubular Bus Bar

WOPENG PTFE Tubular Bus Bar is specifically designed for extreme environments. Its main insulation employs a precise mechanical winding of polytetrafluoroethylene (PTFE) film, with silicone oil applied between layers to form a dense, gas-free continuous insulator. The product incorporates no fewer than 5 capacitive screens (including zero screen, grading screen, and grounding screen) and is equipped with silicone rubber creepage extenders to achieve optimized electric field distribution and enhanced creepage performance. It offers excellent corrosion resistance and superior high/low-temperature tolerance, with an operating temperature range of -60°C to 250°C and a protection rating reaching IP68.

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Technical Advantages

Temperature Resistance: Operating temperature range from -60°C to 250°C.  

Corrosion Resistance: Resistant to acids, alkalis, salt spray, and organic solvents.  

Lubricating Properties: Extremely low friction coefficient of PTFE tubular bus bar, reducing mechanical stress.  

High Dielectric Strength: Low dielectric constant, minimal dielectric loss, and stable insulation performance.


Insulated Tube Busbar Structure Diagram (Polytetraoxyethylene Process)

The cross-sectional structure of the GM-insulated tube busbar is shown in Figure 2.Model: GMn/n

Typical application solutions for insulated tube busbars
Method 1: Connect the main transformer to the control room
This is the most common way of tubular busbar application. The busbar is directly connected from the low-voltage terminals of the main transformer to the
switch cabinet terminals in the control room. Main advantages: Suitable for large currents. The wiring is clear and beautiful, and can be fully insulated or semi-insulated.

Method 2: The busbar is routed through a cable trench or cable mezzanine
The figure below is another common way of applying tubular busbars. The busbars can be connected to switch cabinets through underground cable trenches
or cable mezzanines, and can also be used for connections between switch cabinets. This busbar is fully insulated and is particularly suitable for situations
where wiring is difficult.

Method 3:Tubular busbars are routed through cable trenches or cable mezzanines
This method is the top cable connection method of the switch cabinet. It can also be connected through the cable mezzanine and the bottom cable connection
method. Users can choose according to the actual situation. The busbar type is fully insulated.

Method 4:Tubular bus CNC monitoring system
Our company develops it by itself and implements unmanned intelligent monitoring of multiple technical data of the tube bus.

Insulated tube busbar

Technical Challenges

Winding Process Control: Inter-layer tension uniformity requirement within ±2%, with ultrasonic assistance needed for bubble control.  

Inter-Layer Adhesion: Low surface energy of PTFE tubular bus bar results in weak inter-layer bonding, requiring special treatment agents.  

High Cost: Expensive raw PTFE tubular bus bar material leads to significantly higher product costs compared to other types.  

Difficult Recycling: PTFE tubular bus bar material is hard to degrade, resulting in high environmental processing costs.

 

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About Us
Jiangsu Wopeng Power Technology Co., Ltd.
Jiangsu Wopeng Power Technology Co., Ltd.
Founded in June 2018, Jiangsu Wopeng Power Technology Co., Ltd. has rapidly grown into a specialized high-tech enterprise in the field of high and low voltage busbar systems.

We gather a professional team of industry experts, senior engineering and technical personnel, and experienced production specialists who have been engaged in power equipment technology for many years.

Our main products include copper & aluminum tube busbars, wind power tube busbars, intensive (compact) busbars and sliding contact line systems. We focus on the R&D and manufacturing of 0.4 kV–35 kV fully insulated enclosed tube busbars and low-voltage cast resin busway systems, providing reliable power transmission paths for power plants, substations, wind farms, rail transit and industrial facilities.
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