International Conference on Large High Voltage Electric Systems II. (töredék) [antikvár]

31-01 O THREE PHASE UHV TEST LINE FACILITY DESCRIPTION AND PRELIMINARY RESULTS bV G. BALDERSTON P.L. KOLARIK * Philadelphia Electric Co. Philadelphia, Pa. Electric Power Research Institute Palo Alto, Calif. L.E. ZAFFANELLA General Electric Co. Pittsfield, Mass. (United States! SUMMARY This report describes the facilities of EPRI Project UHV, which were expanded during 1974. The new 3-phase test line can be energized at line voltages up to 1500 kV and can be used to investigate line and conductor configurations for a wide range of parameters such as height above ground, phase spacing, voltage, conductor diameter and numbers, bundle diameter. The equipment, instrumentation, and the most important features of the facilities are described. The first line configuration, using a bundle of 8 conductors, 3.3 cm in diameter, has been energized since January 1975 and has provided basic data on corona performance at various voltages and line configurations. Comparisons between single-phase and 3-phase tests have been performed with the new UHV test line. Audible noise, Corona, Test line. Ultra high voltage. Project UHV, has been a center of ultrahigh voltage a.c. transmission research since 1967, when it was initiated by the Electric Research Council, using Staff and facilities of the General Electric Company. Results were periodically reported to CIGRE in 1968 [1], 1970 [2], 1972 [3], and 1974 [4]. In 1973, Project UHV was transferred to the jurisdiction of the Electric Power Research Institute (EPRI), which has since published a new transmission design book which updates and extends the older "EHV Transmission Line Reference Book" [5], The new book "Transmission Line Reference Book -345 kV and Above" [6] covers the electrical design aspects of transmission lines from 345 kV to 1 500 kV. The design data for ultrahigh voltages were obtained during the single-phase UHV research program from (*) Mr. Kolarik was Project Monitor during a one year assignment to EPRI and has presently returned to Philadelphia Electric Co. REPORT 1. INTRODUCTION