Current transformer thermal stability and dynamic stability multiple

Thermal stability and dynamic stability multiple: When the power system fails, the current transformer is subject to the thermal and electrodynamic effects of the huge current caused by the short-circuit current. The current transformer should have the ability to withstand without being damaged. This ability to withstand is used Thermal stability and dynamic stability multiples are expressed. The thermal stability multiple refers to the ratio of the current that does not cause the current transformer's heat to exceed the allowable limit within 1s of the thermally stable current to the rated current of the current transformer. The dynamic stability multiple is the ratio of the maximum instantaneous current value that the current transformer can withstand to its rated current.