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U.S. Department of Energy
Office of Scientific and Technical Information

Study to investigate the basic switching impulse insulation level requirements for a 1200 kV CGIT cable system

Technical Report ·
DOI:https://doi.org/10.2172/5857543· OSTI ID:5857543
A study was performed to determine the switching surge voltages a prototype 1200 kV CGIT cable may be exposed to under service conditions. The results of this study were used to establish the system's basic switching impulse insulation level requirements. An investigation was made of a suitable CGIT model to be employed for use on the Westinghouse transient network analyzer. The model chosen was applicable for the cable when its sheaths are solidly grounded. This model was employed for each of the four cable lengths investigated. Cable lengths of 600 ft, 2 miles, 10 miles and 50 miles were investigated in four general system configurations, in all 47 systems were studied.
Research Organization:
Department of Energy, Washington, DC (USA). Div. of Electric Energy Systems
Sponsoring Organization:
USDOE
OSTI ID:
5857543
Report Number(s):
DOE/ET-2061-2
Country of Publication:
United States
Language:
English