The answer to 'why is my electrical panel burning smell' is that a burning smell coming from your electrical panel is a sign of a serious electrical issue that requires immediate attention. This could be caused by a variety of problems, such as loose connections, overloaded circuits, or faulty components within the panel.
A burning smell indicates that something is overheating and potentially creating a fire hazard. This is an emergency situation that should not be ignored. Immediately turn off the main breaker to the panel and do not attempt to reset any tripped breakers. Call a licensed electrician right away to diagnose and resolve the problem.