Current distribution within asymmetrical UHV bundles: A laboratory confirmation of analytical studies

Laboratory tests confirm computer calculations of the current distribution among the subconductors of 1,100-kV bundles. The test specimen consisted of a 120-foot (36.57 m) long 8- × 1.6-inch (4 cm) Chukar conductor bundle suspended 29 feet (8.84 m) above ground at BPA´s outdoor test facility. Currents in the individual subconductors were measured at 3 degrees of bundle asymmetry. Good agreement between calculated and measured currents verifies BPA´s computer program for calculating the current distributions within conductor bundles.