REFRIGERATION DEVICE FOR TRANSPORTATION

摘要

According to the present disclosure, in a container refrigeration apparatus configured to cool the inside of a container, the accuracy of determination of occurrence of a lock abnormality and a connection abnormality of a motor is increased, and erroneous detection of the motor abnormalities is reduced or prevented. The container refrigeration apparatus of the present disclosure includes an abnormality determinator (44) configured to compare a value for current flowing through an in-compartment motor (1) with a preset current threshold to determine occurrence of the motor abnormalities of the in-compartment motor (1), and a threshold changer (45) configured to change the current threshold of the abnormality determinator (44) in accordance with a supply voltage for each supply frequency of a power supply (42) configured to supply power to the in-compartment motor (1).