Title :
Upgrading the ampacity of HPFF pipe-type cable circuits
Author :
Aabo, Torben ; Lawson, W. Graham ; Pancholi, Sunil V.
Author_Institution :
Power Technol. Inc., Schenectady, NY, USA
Abstract :
The upgrading of several 69 kV pipe-type cable feeders on the Potomac Electric Power Company (PEPCo) transmission cable system is discussed The methods used for the ampacity calculation are described. The fluid circulation approach required to meet the feeder emergency load requirements are discussed. For the feeders that were in service for approximately 40 years, a system life evaluation was performed
Keywords :
cable insulation; electric conduits; insulating oils; power transmission lines; underground cables; underground transmission systems; 69 kV; Potomac Electric Power Company; ampacity calculation; cable feeders; emergency load requirements; high pressure fluid filled cable; pipe-type cable circuits; system life evaluation; transmission cable system; Circuits; Communication cables; Mechanical cables; Soil; Substations; Temperature; Thermal conductivity; Thermal factors; Thermal resistance; USA Councils;
Conference_Titel :
Transmission and Distribution Conference, 1994., Proceedings of the 1994 IEEE Power Engineering Society
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1883-8
DOI :
10.1109/TDC.1994.328413
