Operational characteristics of a 1000 MVA superconducting power transmission system
Abstract
Over the last three years, the power transmission project at Brookhaven National Laboratory has been testing two flexible superconducting cables for the transmission of ac electric power. These cables are each 115 m long and are rated at 80 kV, 4100 A single-phase for a power rating of 333 MVA - (1000 MVA, 138 kV, 3 phase). They have been operated over the range of 7 to 12 K in supercritical helium at 14 to 15 atm. The cables have been tested at currents and voltages above their ratings and have also been operated with no coolant flow to study the effects of loss of refrigeration on cable performance. The insights gained from the operation of the system over this extended period are presented. Finally, those areas are delineated which will require further research before this technology can be integrated into the US electrical power delivery system.
- Publication:
-
Presented at the Appl. Superconductivity Conf
- Pub Date:
- September 1984
- Bibcode:
- 1984apsu.confR....T
- Keywords:
-
- Performance Tests;
- Power Transmission;
- Superconductivity;
- Transmission Lines;
- Cooling Systems;
- Cryogenics;
- Electric Potential;
- Helium;
- Refrigerants;
- Test Facilities;
- Electronics and Electrical Engineering