The average power output of the primary coil of a microwave oven transformer (MOT) can vary depending on the specific model and its intended application. However, I can provide you with some general information.
Microwave oven transformers are typically designed to handle power levels in the range of 600 watts to 1200 watts for domestic microwave ovens. Commercial or industrial microwave ovens may have higher power ratings.
In residential microwave ovens, the primary coil's power output usually falls in the range of 800 watts to 1000 watts. This power level allows the transformer to step up the voltage from the standard household voltage (usually 120 V in the United States) to the higher voltage required by the magnetron, the component responsible for generating the microwaves that cook the food.
It's important to note that the actual power output can vary from model to model, so it's always best to refer to the specific technical specifications or label on the microwave oven transformer for the exact power rating. Additionally, as a safety precaution, working with microwave oven transformers or any high-voltage equipment should only be done by qualified professionals.