The diesel generator is a combination of a diesel engine and a synchronous alternator. The permitted high power of the diesel engine is limited by the mechanical load and the thermal load of the parts, so it is necessary to stipulate that the permitted high power of continuous operation is called the rated power, otherwise, it will shorten its service life, and may even cause accidents. (1) calibration power of diesel engines; * The Standard provides that the calibration power on the nameplate of a diesel engine is classified into the following four categories; 1)15 Min Power: that is, the diesel engine is allowed to run for 15 Min * High Power. In a short period of time, it may overload operation and require calibration power with acceleration performance, such as the calibration power of diesel engines such as automobiles and motorcycles. 2)1h power: That is, the effective power of the diesel engine which allows continuous operation for 1H. Such as wheeled tractors, locomotives, ships and other diesel engine calibration power. 3)12h power: That is, 12h continuous operation of the diesel engine is allowed to * Large effective power, that is, we often say the rated power. Such as power station units, construction machinery used diesel engine calibration power. 4) continuous power: high active power that allows the diesel engine to run continuously for long periods of time. POWER UNIT KW KVA relationship: Kw is the unit of power, generally 1kva = 0.8 KW, when buying do not confuse KVA and KW.