Development of cross-linked polyethylene insulated cable for cryogenic operation. Final report

Technical Report · Thu Jan 31 23:00:00 EST 1985

OSTI ID:6052745

Sosnowski, M; Bahder, G; Eager, Jr, G S

The development of crosslinked polyethylene (XLPE) insulation structure for cryogenic high voltage cable is described. Models of the cryogenic cables rated 69 kV, 138 kV and 230 kV were made utilizing copper conductors and the insulation structure consisting of extruded XLPE insulation and semiconducting XLPE conductor and insulation shields. The cables were subjected to alternating voltage endurance tests, partial discharge tests and breakdown tests, at 77/sup 0/K. Thermal contraction of the cables cooled from ambient temperature to 77/sup 0/K was also investigated. The XLPE structure was found to have good electrical and mechanical properties at cryogenic temperatures. A method of manufacturing of XLPE insulated cryogenic cables on a modified extrusion line was proposed. A review of the costs of different transmission systems, including one with a laminar cryogenic cable, revealed that the extruded XLPE insulated cryocable may be the most economical for high power transmission.

• Research Organization: Cable Technology Labs., Inc., New Brunswick, NJ (USA)
• OSTI ID: 6052745
• Report Number(s): EPRI-EL-3907; ON: TI85920536
• Country of Publication: United States
• Language: English

Related Subjects

200303* -- Power Transmission & Distribution-- Superconducting & Cryogenic Systems-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
BREAKDOWN
CABLES
CONDUCTOR DEVICES
COST
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
EQUIPMENT
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POWER TRANSMISSION
POWER TRANSMISSION LINES
SUPERCONDUCTING CABLES
THERMAL INSULATION
UNDERGROUND POWER TRANSMISSION