March 4, 2013
On the TUTORIALS page on the website: arproducts.org there is a technical paper titled, "A Study of Galloping Conductors on a 230 kV Transmission Line". The last four pages compares two anti-gallop devices. The first device, WINDAMPER®, hangs below the conductor and is all aluminum. The second device, detuning pendulum, also hangs below the conductor and is made of cast iron. The first device requires up to two per conductor span, while the second requires four or five per span. The first device is designed to help the conductor to twist in the wind to control gallop. The second device is designed to prevent conductor twisting to control gallop. Obviously, there is a contradiction between the two devices. (continued)
January 18, 2013
The new lightweight spacer/damper is now available for twin and quad bundled conductors, both new and old. This new design will revolutionize the way that bundled conductors are used. Here are some of the unique features:
March 1, 2013
The patents listed here are but a few of the ones that resulted from the MIT Research Project on Galloping Transmission Lines during the early 1960's. This project was sponsored by the Edison Electric Institute and consisted of (i) Analysis, (ii) Wind Tunnel Testing, (iii) Dynamic Model Testing, (iv) Field Testing on Full-Scale Transmission Lines.
It led to (i) Eight Project Progress reports, (ii) Eight IEEE Papers, (iv) One International paper at the First International Congress on the Effects of Wind on Structures, presented at Teddington, England by Mr. Albert S. Richardson, (v) Eighteen U.S. and Foreign Patents, and (vi) other papers presented to ASCE and CIGRE... (continued)