The Stockbridge Vibration Damper mitigates aeolian vibration—high-frequency, low-amplitude motion caused by wind on overhead transmission lines—preventing conductor fatigue and extending service life. This damper dissipates vibrational energy through a galvanized steel messenger strand that absorbs energy via flexing and friction, with unequal weights on messengers of varying length creating multiple resonant peaks for broader frequency coverage.
The damper features a breakaway bolt that shears at proper torque, eliminating special tools or torque wrenches during installation. A precision-fit aluminum alloy clamp distributes pressure evenly across the conductor surface, while corrosion-resistant galvanized ductile iron weights ensure durability. Models accommodate conductor diameters from 0.859 to 1.130 inches and voltage applications up to 345 kilovolts (kV) and above, suitable for installation on both energized and unenergized lines.
Field studies from 1993 demonstrate over 40 years of protection against aeolian vibration, with laboratory testing confirming effective energy dissipation across diverse environmental conditions. The damper complies with International Electrotechnical Commission (IEC) 61897 and Institute of Electrical and Electronics Engineers (IEEE) 664 standards, ensuring materials, design, and testing meet industry benchmarks.
Proprietary software tools like Vibrec and VORTX assist in determining optimal damper placement based on laboratory data and field expertise, with technical support available for project-specific requirements.
Your Trusted Stockbridge Vibration Damper Manufacturer
RaxPower is a well-known supplier, manufacturer, and factory of high-quality Stockbridge Vibration Damper and other power line accessories. With over 21 years of manufacturing experience, we specialize in producing vibration dampers engineered to control aeolian vibrations in overhead transmission lines.
The damper effectively dissipates vibrational energy by converting kinetic energy into heat through friction, preventing conductor fatigue and ensuring the longevity, reliability, and safety of power transmission systems.
Constructed from durable materials, it features robust design, high efficiency, and precise dimensions for easy, maintenance-free installation. Our advanced processes, including hot forging and automated production, coupled with strict quality control and multi-stage testing, guarantee superior performance in diverse applications, from traditional grids to renewable energy projects.
Choose RaxPower as your reliable partner for innovative vibration control solutions. Contact us today to learn more about this groundbreaking product and how it can benefit your project.
| Parameter | Value |
|---|---|
| Conductor Diameter Range | 0.859 – 1.130 inches |
| Total Length | 330 – 383 mm |
| Weight | 1.4 – 2.5 kg |
| Messenger Material | Galvanized steel |
| Weight Material | Galvanized ductile iron |
| Clamp Material | Aluminum alloy |
| Standards | IEC 61897, IEEE 664 |
| Voltage Rating | Up to 345 kV |
| Frequency Response | Four resonant peaks |
| Bolt Type | Breakaway bolt |
| Installation Torque | 25 ft-lb |
Frequently Asked Questions (FAQS)
How does the Stockbridge Vibration Damper reduce aeolian vibration?
The damper operates through two natural frequency modes ('flying' and 'wiggling') using a specially designed 19-strand messenger wire that dissipates vibration energy by converting kinetic energy into heat through friction. Its asymmetrical design with unequal weights on messengers of unequal length creates four resonant peaks instead of two, providing protection across the entire range of dangerous vibration frequencies.
What materials are used and how do they ensure durability?
The damper features an aluminum alloy clamp, hot-dip galvanized steel weights and messenger cable, and bolts made from galvanized steel or stainless steel. Hot-dip galvanization provides corrosion resistance for long-term durability, with comparative testing demonstrating 40+ years of proven protection.
How do you ensure compliance with industry standards?
Our dampers are tested in accordance with international standards including IEC, IEEE, ASTM, ANSI, and others. We employ strict quality control with raw material selection, multi-stage testing, load and gauge tests to verify durability, and all products are reviewed twice before packing to ensure compliance.
How does installation work?
No special tools are required. Our dampers feature a breakaway bolt option that shears off at proper torque, eliminating the need for torque wrenches and ensuring correct installation. Application instructions with recommended procedures and bolt torque specifications are provided with each order, and our technical support team can assist with placement recommendations.
What conductor sizes are compatible?
The damper is compatible with conductor diameters ranging from 0.859 inches to 1.130 inches and beyond. We offer customizable designs tailored to specific project needs and conductor sizes, with manufacturing processes including hot forging for strength and accuracy.
Do you provide damper selection assistance?
Yes, RaxPower offers the Vibrec® damper recommendation program to assist in determining damper requirements for transmission and distribution lines, providing technical support for optimal placement and performance.
What is your capacity for large orders?
We operate 17,000 square meters of production workshops and 5,000 square meters of warehouses, enabling efficient handling of large orders. Lead times are competitive and negotiable based on order volume, with safe packing and timely delivery to meet project schedules.
Get A Quick Quotation Today
