Dynamic Thermal Line Ratings Part II Conductor Temperature Sensor and Laboratory Field test Evaluation

Abstract

An outdoor laboratory test facility was utilized to evaluate the performance of the dynamic ampacity rating algorithm, developed in Part I, and a prototype conductor sensor module for measuring conductor surface temperature, conductor current and ambient air temperature. The test facility consisted of a fully instrumented outdoor mock conductor test loop and a real time data acquisition system. Both steady state and transient load tests were performed and analyzed under a wide variety of meteorological conditions. The ampacity predictions observed were consistent with laboratory test measurements. Cor- relations obtained between sensor module measurements and calibrated sensors was excellent over the intend- ed range of application of the sensor module.