EVALUATION OF THE INTERFERENCE-SUPPRESSING POWER CONDUCTOR
Abstract
Field evaluation was made of a 4-mile installation of 13.2 kv, 3-phase, special interferenceattenuating power line. The special line, with large magnitudes of interference at its beginning, is shown to attenuate effectively over the broad frequency spectrum to bring the noise level of the line down to the level of the natural ambient in about half of its length. Impedance measurements of the power line as a transmission line showed it to be independent of line terminations, and that considerable attenuation was present. Field intensity measurements showed that the intensity decreased rapidly in greater than inverse square with distance, indicating a field propagated along the line, with no measurable radiation away from the line. The effect of the high-permeability tape thickness on attenuation is considered theoretically and experimentally, and it shows that attenuation is proportional to the tape thickness until the thickness is of the order of one skin depth. The potential applications and limitations of the new interferencesuppressing line are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 20, 1961
- Accession Number
- AD0268730
Entities
People
- D.b. Clark
- J.l. Brooks
Organizations
- Naval Facilities Engineering Service Center