Microwave stopping working

Question

The microwave was working fine until today. I tryed to heat up something and it ran for about 1 minute and and shut off causing my fuse box to trip off. The unplug the microwave and turned the fuse box to the on position and then replugged the microwave and now it is not coming on at all.I have a Panasonic Inverter 1100watt Microwave, only 12mths old. has been working like a dream. Today it stopped heating, and shuts down after exactly 30secs of use. Angie