The standard electric current configuration section which configurates the standard current value in order

摘要

The present invention relates to an overload protection device for a compressor that can remove an overload protector and prevent the compressor from damaging due to overload using an operation control device that operates the compressor, and the method of overload protection is a base for operating the compressor normally A reference current setting section for setting a quasi current value preset, a current detecting section for detecting a current applied to the compressor, and a detected power value when the detected current value is larger than the reference current value, and a power supply signal when the detected current value is smaller than the reference current value It is composed of a microcomputer for generating a supply signal and a power supply section for interrupting the power supply to the compressor based on the power supply cutoff signal or supplying power to the compressor based on the power supply signal.