Characteristics
generator sets to be able to run in parallel. The voltage regulation of the generator to be maintained in the range of ±2.5% of rated voltage between zero and full load under steady condition of rated power factor. Maximum voltage change not to exceed 15% when a current equal to 80% of the full load current at power factor between zero and 0.4 lagging is suddenly drawn. The voltage to be restored to within 3% of the rated voltage in not more than 1 second.