HTS Triax™ Energy Cable Systems

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High-temperature superconductor technology(HTS) is the key technology fortomorrow’s electricity market. Compared with copper conductors, HTS ceramic cableshave a number of signifi cant advantages. For example they can conduct electric current without resistance at app. 200°C below zero. Transmission capacity is five timeshigher than that of conductors made of copper, while current loss is reduced to one tenth. The development of HTS cables is inseparably linked to the name nkt cables. However, nkt cables is not just one of the ...

Vydal: nkt cables s.r.o. Autor: nkt cables

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5 3/1.5 6.0 3.5 3.2 1. single phase mH/km 0.017 0.1 2.2-0.5 AC loss power factor, P=k*ln 3 3 Capacitance, eqv.2 kV Dimensions/Ampacity, 1.5 7 Permissible pulling force 20 Bending radius during laying/at terminations (min) 3/1.5 3/1.1 2.6/13. 15 Electrical data Conductor resistance Pnom µOhm/m <10 <10 <10 <10 <10 Conductor loss Pnom *(Toperation 67 W/m/ph 0.2 1.5 1.026 0.5 3/1.5 1.02 0.1 Screen, copper tape, cross section mm2 80 110 120 120 Outer cable core diameter 68 Weight, HTS cable core, phases kg/m 3.3 3.7 5.25 2.5 5.3 0.6 0.5 Thermal insulation Semi-right corrugated duct, ID/OD 60/110 60/110 8/13 8/13 8/13 PE outer sheath thickness 3 Total 150 150 150 Termination 160 160 160 Permissible pulling force 15 Bending radius during laying/at terminations (min) 3/1.017 Power rating (continuous load) 13,2 kV 1 circuit/2 circuits MVA 29/57 6/91 57/11 69/137 78/155 Construction code: HT-BC-CRS(WM)2Y Construction code with rigid thermal insulation: HT-BC-CRS(RL)2Y Construction code with YBCO-type HTS conductor: HT-YC-CRS(WM)2Y CR: Cryoflex® electrical insulation S: Copper wire tape screen (WM): Corrugated “wellmantel” semiflexible thermal insulation 2Y: polyethylene outer sheath HT *Conductor loss Pnom depends operation temperature, 67-79.019 0.4 Cable core Conductor, BSCCO laminated, hollow 1 Copper stabiliser, cross section mm2 0 60 Cryoflex® insulation 2.3-0.5 Heat leak, joints W/ea.5-1.1 2.3-0.5 3/1.9 0.3 Codes HT: HTS triaxial cable design B: BSCCO-type HTS conductor laminated with metal sheath C: Added copper stabiliser for over-current protection BB CRCR WMWM 2Y2Y Construction Code Type HT-BC-CRS(WM)2Y 7.2 Inductance, eqv.2 5.-1.2 0.1 2.5 Heat leak, duct section W/m 1.5 3/1. phase-to-ground µF/km 3.5 3/1.00 2.5 3/1.5 3/1