Tungsten Copper Tulip Contact
1. What's Tungsten Copper Tulip Contact?
Tungsten copper tulip contact is electrical contact featuring ring-shaped structure with multiple contact fingers. The fingers make contact with a mating conductive component to establish an electrical connection and transmit current. CTIA's tungsten copper tulip contacts combine tungsten's high melting point and arc erosion resistance with copper's electrical and thermal conductivity, making them suitable for switching equipment subject to high electrical and thermal loads.
2. Characteristics of CTIA's Tungsten Copper Tulip Contact
(1) Arc Erosion Resistance: Tungsten has high melting point, helping reduce contact erosion caused by high-temperature electrical arcs. Local arc temperatures in switching equipment can exceed 20,000 K, placing high demands on contact material resistance to arc erosion.
(2) Electrical and Thermal Conductivity: Grades with higher copper content generally offer higher electrical and thermal conductivity, helping carry current and dissipate heat.
(3) High Strength and Hardness: Higher tungsten content generally increases material hardness and wear resistance, making it suitable for working ends exposed to arc impact and mechanical contact loads.
(4) Low Coefficient of Thermal Expansion: Compared with pure copper, tungsten copper undergoes smaller dimensional changes when heated, helping maintain contact structural stability.
(5) Customizable Composite Structure: The contact can combine tungsten copper working end with copper or copper alloy contact fingers, balancing arc erosion resistance at the working end with electrical conductivity through the fingers.
3. Applications of CTIA's Tungsten Copper Tulip Contact
(1) Medium-Voltage Withdrawable Circuit Breakers: Utilized for plug-in connections between circuit breakers and switchgear fixed contacts to achieve main-circuit current conduction.
(2) Medium-Voltage Switchgear: Used for plug-in main circuit connections in incoming feeder panels, outgoing feeder panels, and bus coupler panels, meeting electrical contact requirements during circuit breaker insertion, withdrawal, and operation.
(3) Gas-Insulated Switchgear: Used in plug-in contact assemblies with a tulip-shaped structure to connect internal conductive circuits.
(4) High-Voltage Circuit Breakers: Used in high-voltage circuit contact assemblies to meet high-current transmission and reliable electrical contact requirements.
(5) Disconnectors: Used as plug-in contacts in main circuits to establish reliable connections between conductive components.
4. Specifications of CTIA's Tungsten Copper Tulip Contact
(1) Common Material: CuW70, CuW75, CuW80, CuW85, etc.
(2) Structural Configuration: Combination of tungsten-copper working ends and copper or copper-alloy contact fingers.
(3) Dimensions, Tolerances, and Surface Finishes: Customizable according to requirements.
CTIA GROUP has nearly 30 years of experience in tungsten copper alloy manufacturing, with extensive expertise in powder metallurgy and precision machining. CTIA provides structural design and customization services for tungsten copper contacts based on switching equipment operating conditions and contact configurations, meeting contact performance requirements under different operating conditions.
For any inquiry, please contact tungsten copper manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: tungsten-copper.com
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