Loss Measurements Made on Underground-Cable Overhead-Conductor 132-Kv Transmission Line at Carrier Current Frequencies

This paper discusses carrier current applications on a 132-kv line composed of underground cable and overhead conductors. The discussion includes some of the test procedures used at the carrier frequencies in measuring the losses in the various components of the circuit and some of the difficulties encountered. The measured results are compared on a decibel loss and on a watt loss basis. Some data on ``ambient´´ noise levels and on signal to noise ratios also are included.