If the fault current flows through
the HTS power cable, quench occurs in both conducting and shield
layers of the HTS power cable. After the quench, the resistance appears
and each self inductance value does not change largely, but
the mutual inductance value is directly affected. The line impedance
between source and fault spot will be transiently changed,
and the level of fault current will consequently be decreased to a
certain value. The decreased current value depends not only on
the condition of power system but also on the characteristics of
HTS power cable core.