State parameters: The state parameters of the inlet and exhaust pressure and inlet temperature where the compressor is running are called the "operating conditions" of the compressor, and the parameter conditions marked on the nameplate of the compressor are called "rated operating conditions", deviating from the "rated operating conditions "Condition" operation is called "variable conditions".
Specific power: refers to the power consumed by the compressor per unit volume flow. It is an important indicator for evaluating the energy efficiency of compressors. (Compress the same gas at the same discharge pressure)
Protection level: It is a value indicating the degree of sealing of electrical equipment such as dustproof, foreign body, waterproof, etc., expressed by IPxx (xx is two Arabic numerals)
