Dielectric insulation characteristics of liquid-nitrogen-impregnated laminated paper-insulated cable
Journal Article
·
· IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)
- Central Research Inst. of Electric Power Industry, Yokosuka (Japan)
This paper reports that the electric characteristics and insulation design strength of a liquid-nitrogen-impregnated synthetic insulation was considered. It found to detect the impregnation of liquid nitrogen by measuring the electrostatic capacitance of the cable [epsilon] [center dot] tan [delta] an index of the dielectric loss, was 0.31% for cellulose paper and 0.18% for semisynthetic paper, PPLP and OPPL. It is found that the decline of the thickness dependence of the breakdown strength of the liquid-nitrogen-impregnated insulating cable is steeper than that of the OF cables. It is possible to design the insulation strength of the 66 kV cable to 10 kV/mm.
- OSTI ID:
- 6932650
- Journal Information:
- IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Vol. 7:4; ISSN 0885-8977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
24 POWER TRANSMISSION AND DISTRIBUTION
36 MATERIALS SCIENCE
ELECTRIC CABLES
DESIGN
POWER SYSTEMS
ELECTRICAL INSULATION
PLANNING
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
ELECTROSTATICS
GAS-INSULATED CABLES
MATERIALS TESTING
NITROGEN
SURFACE COATING
CABLES
CONDUCTOR DEVICES
DEPOSITION
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
MATERIALS
NONMETALS
PHYSICAL PROPERTIES
TESTING
240301* - Power Transmission Lines & Cables- Power Cables- (1990-)
240100 - Power Systems- (1990-)
360606 - Other Materials- Physical Properties- (1992-)
36 MATERIALS SCIENCE
ELECTRIC CABLES
DESIGN
POWER SYSTEMS
ELECTRICAL INSULATION
PLANNING
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
ELECTROSTATICS
GAS-INSULATED CABLES
MATERIALS TESTING
NITROGEN
SURFACE COATING
CABLES
CONDUCTOR DEVICES
DEPOSITION
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
MATERIALS
NONMETALS
PHYSICAL PROPERTIES
TESTING
240301* - Power Transmission Lines & Cables- Power Cables- (1990-)
240100 - Power Systems- (1990-)
360606 - Other Materials- Physical Properties- (1992-)