Table 3.3

       
132kV
275kV
400kV
Sizemm235564597011301935
Rating (Soil g = 1200C cm/W)A550870110011001600
MVA1252005255251100
Resistance (R) at 850C)0.0650.0350.0250.020.013
Reactance (XL)0.1280.1380.220.1340.22
Charging Current (Ic)A7.9010.6915.7017.7723.86
XL / R2.04.08.86.616.8

Table 3.3 Underground Cable Constants at 50Hz (per km)

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