Refrigerating device for containers

A container refrigerator operating with a generator connected thereto as its power supply and generating equivalent negative-phase-sequence current during its operation, the container refrigerator comprising:

• a first calculator which calculates a permissible equivalent negative-phase-sequence current of the connected generator based on a predefined percentage of the connected generators rated current;
• a second calculator which calculates the equivalent negative-phase-sequence current generated during operation of the container refrigerator based on a predefined formula having one or more coefficients that vary based on a predefined type associated with the container refrigerator;
• and
• a restrictor which restricts the equivalent negative-phase-sequence current generated to the permissible equivalent negative-phase-sequence current of the generator or less if the equivalent negative-phase-sequence current generated that has been calculated exceeds the pettnissible equivalent negative-phase-sequence current of the generator.