Title :
Carrier-Current Losses Measured and Interference Minimized on Boulder-Los Angeles Transmission Lines
Author :
Laughlin, J.D. ; Pakala, W.E. ; Reagan, M.E.
Author_Institution :
Junior electrical engineer, Bureau of Power and Light, City of Los Angeles, Calif.
Abstract :
Two unusual facts were disclosed during the field testing of the supervisory-control carrier-current channel on the 287-kv Boulder Dam-Los Angeles transmission lines. Carrier-current losses were much higher than calculations and previous experience had indicated. The interference from power equipment arcs could not be isolated by the use of resonant choke coils, requiring special circuit designs for satisfactory operation.
Keywords :
Circuit testing; Coils; Distributed parameter circuits; Inductors; Interference; Loss measurement; Power transmission lines; Propagation losses; Resonance; Transmission line measurements;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1940.5057998
