System and method for fault protection

A circuit system, comprising:

• an electrical device;
• a switch;
• and
• a protection system for the electrical device, comprising:
• a control module for providing control signals and switching signals based at least in part on a detected signal measured by a detecting device, wherein the control signals comprise a first control signal corresponding to a normal mode and a second control signal corresponding to a fault mode;
• and
• an inductive device coupled with the switch, wherein the inductive device is controlled to be operated with a first inductance in response to the first control signal provided from the control module and a second inductance in response to the second control signal provided from the control module;
• and
• wherein the switch is configured for being switched on and off according to the switching signals.