The answer to 'why is my generator power surge' is that a power surge in a generator is often caused by an issue with the generator's voltage regulator or alternator. This can result in fluctuating or unstable power output, which can damage connected appliances and electronics.
Some common causes of generator power surges include a malfunctioning voltage regulator, issues with the alternator, overloading the generator, or problems with the fuel system. Symptoms may include flickering or dimming lights, sudden changes in motor speed, or electronic devices shutting off unexpectedly.