Performance of a technical and economical feasibility study of an HVDC compressed-gas-insulated transmission line. Technical status report No. 7, July-August 1980

Technical Report · Thu Sep 25 04:00:00 EDT 1980

OSTI ID:5293846

Progress in research on an HVDC compressed-gas-insulated transmission line is reported. The protective scheme, utilizing near-term projected MOV arresters, has been shown to be capable of achieving a 1300 kV BIL and a 1050 kV BSIL. Improvements have been made to the method of assembling the test model, in preparation for the large test model. Final test tanks are being fabricated. The test jig for the measurement of volume resistivity of the insulator has been completed. The prototype vertical leaf expansion joint was completed. Reasonable temperature rises were recorded during a free air heat rise test of the vertical leaf joint. The flexible copper leaves passed the first fatigue test. Additional testing is planned. The solder joint between the aluminum joint body and Alcuplate transition piece failed during fatigue testing. The design has been changed to eliminate the transition piece by nickel plating the aluminium joint body. The nickel plating will produce a better solder joint and should eliminate the failure.

• Research Organization: Aluminum Co. of America, Alcoa Center, PA. Alcoa Technical Center
• DOE Contract Number: AC01-79ET29355
• OSTI ID: 5293846
• Report Number(s): DOE/ET/29355-T8
• Country of Publication: United States
• Language: English

Related Subjects

200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
ALUMINIUM
CABLES
CONDUCTOR DEVICES
DC SYSTEMS
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELEMENTS
ENERGY SYSTEMS
EQUIPMENT
EXPANSION JOINTS
GAS-INSULATED CABLES
HVDC SYSTEMS
JOINTS
METALS
OVERHEAD POWER TRANSMISSION
OVERVOLTAGE
PERFORMANCE TESTING
POWER SYSTEMS
POWER TRANSMISSION
POWER TRANSMISSION LINES
RESEARCH PROGRAMS
TESTING