hello, Thanks for using just answer.
I would suggest that there is damage to the cable. a cut or squashed so the inner conductors are shorting out.
Have you given the cable a visual check?
although you have changed the fuse in the plug , electricity may be going to the earth conductor in the cable which is tripping the main fuse.
If you fvind damage I would suggest you take it to a local repair shop in order toget a new one replaced safely and with a warrenty on the repair.