OVERVIEW OF TEST REQUIREMENTS ON HV DC APPARATUS AND RESULTING IMPACTS ON UHV DC TEST SYSTEMS

摘要

The growing demand for reliable and environmental friendly energy has led to an increased number of High Voltage DC transmission systems. Researchers and manufacturers worldwide are pushing the limits further to meet tomorrow's demand. At the same pace that the HV DC equipment is advancing, the testing equipment for HV DC equipment have to advance as well so that manufacturers can prove the performance and quality of their components and researchers have the tools to further investigate the insulation systems at increased voltage levels. This paper provides a brief overview of the different HV DC test requirements and procedures according to IEC standards as well as Cigre recommendations. The peculiarities for HV DC cables, DC bushings, converters, etc as well as general purpose testing will be introduced and discussed. An alternative to the common Greinacher cascade UHV DC generators will be presented in detail.