Method and apparatus in order to control the moment when it is advisable to trigger an increase of volume of a compressor

摘要

The invention relates to a process and an apparatus in order to control the moment when it is advisable to trigger an increase of volume of a compressor. / p & & p & the electrical current supplied to the motor driving a compressor has a variable volume 10 is the control of the echelons. The current [0196 subsequent of the compressor 10 is the control and compares it with the current value of the initial reference. During a variation predetermined between the vapour of the reference current and the value of the current of cookies containing 2 a, we shall now describe, echelon of the volume of the compressor is high for satisfying the load. / p & & p & the invention is used for determining the moment when it is necessary to increase the capacity of a compressor in a refrigeration circuit.