Title :
Loss evaluation for underground transmission and distribution cable systems
fDate :
10/1/1990 12:00:00 AM
Abstract :
The design, manufacture and testing of crosslinked polyethylene (XLPE) cables for voltages of 245 kV and above are described. The operational reliability of a cable connection is decisively codetermined by the reliability of the cable accessories. The state-of-the-art and development trends regarding cable-sealing ends and cable joints are discussed in detail. Knowledge of the lifetime curve of XLPE (essential for designing reasonable qualification tests) is discussed, and test results which show that service stresses of 12-13 kV/mm can be realized are described. The design of accessories, especially joints and terminations for enclosed switchgears is addressed, and service experience is reported
Keywords :
cable insulation; cable jointing; distribution networks; organic insulating materials; polymers; power cables; reliability; transmission networks; underground cables; 245 kV; XLPE insulated cables; cable accessories; cable joints; cable-sealing ends; crosslinked polyethylene; enclosed switchgears; reliability; service stresses; underground distribution cables; underground transmission cables; Cable insulation; Cable shielding; Conductors; Costs; Dielectric losses; Equations; Power cable insulation; Power cables; Power generation economics; Propagation losses;
Journal_Title :
Power Delivery, IEEE Transactions on
