Inglis range not working

We had a few small problems with an older stove we got when we bought the house the house; display panel no functioning correctly among one. I replaced the 10-3 wire as it had some issues I was not comfortable with (that was three years ago). A few months ago this original range blew the 30amp fuse in the fuser panel so we junked it and got a used Inglis electric range. It has been working fine until yesterday.

The chicken was in the oven for an hour. The potatoes cooked for 15 minutes.

Then I turned on the vegetables on the other three elements. This is the first time I had everything on - the oven and all four burners. About five minutes or so after turning all the burners on the 30amp fuse in the panel blew again. My vegetables were barely cooked enough - el dente!

It looks like this model of range has a small circuit breaker which did not blow. Any ideas how to problem solve this. What steps can I take to figure out what the issue is.

Thanks,
Irvin.

Inglis (Whirlpool Canada)
Model: IMP33801