all of my electrics have gone ?

There is unlikely to be an internal fuse. It sounds like there has been a fault in the cooker that tripped the main breaker. It may also have tripped the breaker feeding the cooker as well. Have you checked the circuit breaker or fuse in the house fusebox? The one that feeds the cooker.
If that continues to trip out, you may have a failed element in the oven, but lets get power back to the cooker first.

XXX
August 2016