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 ...
Poznámky redaktora
4 3.0
Inductance, eqv.5 3/1.0 3.5 3.3-0.3-0.029 0.5
AC loss power factor, P=k*ln
3 3
Capacitance, eqv. single phase mH/km 0.0 3. 15
Electrical data
Conductor resistance Pnom
µOhm/m <10 <10 <10 <10 <10
Conductor loss Pnom
*(Toperation
67 K 79 K) W/m/ph 0.25 2.5 5. single phase mH/km 0,039 0,036 0,031 0,028 0,028
Power Rating (continuous load) kV
1 circuit/2 circuits MVA 108/217 173/346 217/433 260/520 294/589
Type HT-BC-CRS(WM)2Y 42/72 HTS Triax™ Energy Cable
.4
Cable core
Conductor, BSCCO laminated, hollow 41
Copper stabiliser, cross section mm2
40 60
Cryoflex® insulation 3.5 7. phase-to-ground µF/km 1,6 1,7 2,0 2,2 2,2
Inductance, eqv.2 7.3 0.2 1.4
Cable Core
Conductor, BSCCO laminated, hollow 41
Copper stabiliser, cross section mm2
40 60
Cryoflex® insulation 4,7 4,7 4,7 4,7 4,7
Screen, copper tape, cross section mm2
120 120 120 120 120
Outer cable core diameter 81
Weight, HTS cable core, phases kg/m 4.5
Thermal insulation
Semi-rigid corrugated duct, ID/OD 84/143 84/143 84/143 98/163 98/163
PE outer sheath thickness 3
Total 150 150 150 170 170
Termination 160 160 160 180 180
Permissible pulling force 20
Bending radius during laying/at terminations (min) 3/1.9 0.5 1.9 1.8 6.6 0.7
Heat leak, joints W/ea.4 3.5 3/1.022
Power rating (continuous load) 30 kV
1 circuit/2 circuits MVA 65/130 104/208 130/260 156/312 177/354
Type HC-BC-CRS(WM)2Y 21/36 kV
*Conductor loss Pnom
depends operation temperature, 67-79 K
Dimensions/Ampacity, 1.3 0.5
Permissible pulling force 20
Bending radius during laying/at terminations (min) 3/1.022 0.7 1.5 3/1.2-0. phase-to-ground µF/km 2.4 3.00 2.5 1.5 1.5 8
Permissible pulling force 20
Bending radius during laying/at termination (min) 3/1,5 3/1,5 3/1,5 3/1,5 3/1,5
Thermal Insulation
Semi-rigid corrugated duct, ID/OD 84/143 84/143 84/143 98/163 98/163
PE outer sheath thickness 3
Total 150 150 150 170 170
Termination 160 160 160 180 180
Permissible pulling force 20
Bending radius during laying/at termination (min) 3/1,5 3/1,5 3/1,5 4/2 4/2
Heat leak, duct section W/m 1,5 1,5 1,5 1,7 1,7
Heat leak, joints W/ea.025 0.2 0.5 3/1.5 3/1.00 2.5
AC loss power factor, P=k*ln
3 3
Capacitance, eqv.
Dimensions/Ampacity, 1.5 4/2 4/2
Heat leak, duct section W/m 1.4 3. 15
Electrical Data
Conductor resistance Pnom
µOhm/m <1
Conductor loss Pnom
W/m/ph 0.7 3.25 2.5 3.6 0.4 2.032 0.4
Screen, copper tape, cross section mm2
120 120 120 120 120
Outer cable core diameter 73
Weight, HTS cable core, phases kg/m 5.5 3/1.5-1.2 2.0 3.4-1
