Ferro resonance is an occurrence when any transformer becomes saturated which seems to be an ever increasing issue within Australia. Since 2011, with articles written in places such as, The Australian titled, “Rooftop solar panels overloading electricity grid”, which outlines the effects of increased solar in residential areas, concerns have been high and erratic mains power which is caused by high level concentration of solar grid fed installations.

All electric Barbecues use what is termed hysteresis control, meaning the power is either on or off depending on the thermostat/thermocouple reading.

The speed of the operation is dependent on the size of the temperature drop when the Barbecue plate is loaded with food.  A quick, substantial drop will activate the power to the element which must heat itself before heating the plate.  Barbecues that contain an insulated 240 volt element have a protective sheath which slows down the heating process.

A thermostat is a component which senses the temperature of a system which then enables that system’s temperature to be maintained near a desired set-point. If it is too close or above the element it will read the bottom of the plate’s temperature which is not ideal.