Adding a current limiting resistor or fuse in series with each switch will help prevent this type of damage.

The operation of the SCCL involves two current transferring processes, i. e. the fast switch transfers the short circuit current to the GTO and then the GTO to the limiting resistor.

Another limiting the use of one type over-current protection circuit to limit output current, and by changing the size of the current sampling resistor to regulate the size of current-limiting value.