Transfer switch with maximum power learn function

A method for calibrating a power meter of a power transfer device, the method comprising:

• monitoring a provided power from a power source in electrical communication with the manual transfer device;
• detecting an overload condition of the power source;
• storing a maximum power level of the source in at least one memory device of a power meter display control circuit, the maximum power level of the power source associated with the overload condition of the power source;
• calculating a percentage of the maximum power provided to a load center connected to the power transfer device from the power source, the percentage of the maximum power comprising a current power provided by the power source to the load center divided by the maximum power level of the power source;
• and
• displaying the calculated percentage of maximum power on the power meter associated with the manual transfer device.

A system for providing power to a site, the system comprising:

• a generator;
• a load center;
• and
• a manual transfer switch in electrical communication between the generator and the load center, the manual transfer switch comprising:
• a power meter for displaying an indication of a power level of the generator provided to the load center;
• and
• a control circuit comprising a processor and at least one memory device, the processor executing one or more instructions stored in the at least one memory device, the instructions causing the control circuit to:
• monitor a provided power level from the generator for an overload condition of the generator;
• store a maximum power level of the generator in the at least one memory device, the maximum power level of the generator associated with the overload condition of the generator;
• and
• calculate a percentage of the maximum power provided to the load center from the generator, the percentage of the maximum power comprising a current power provided by the generator to the load center divided by the maximum power level of the generator;
• wherein the indication of the power level of the generator provided to the load center is the calculated percentage of maximum power.