Many users have a habit of thinking that the rated power of the load equipment and the power that should be equipped when purchasing a generator set are not entirely correct. Because in order for a rational load to operate normally, it involves starting the current. This makes the power of the corresponding equipment's generator set much greater than the rated power of this type of load!

常用电器设备绝大多数是阻性负载和理性负载。

The vast majority of commonly used electrical equipment are resistive loads and rational loads.

阻性负载：设备进行作业时为纯阻性负载称为“阻性负载”。

Resistive load: When the device is operating, it is a pure resistive load called a "resistive load". Common resistive load devices include iodine tungsten lamps, incandescent lamps, 

理性负载：一般情况下，一般把负载带电感参数的负载，即契合电流超前电压特性的负载，成为理性负载。常见的理性负载设备有：变压器、压缩机、电动机、水泵、风机、继电器、日光灯、高压钠灯、汞灯、金属卤化物灯等。如空调、电冰箱、洗衣机、吸尘器、跑步机、微波炉等家用电器。

Rational load: In general, a load with inductive parameters, that is, a load that matches the current leading voltage characteristics, is considered a rational load. Common rational load devices include transformers, compressors, motors, water pumps, fans, relays, fluorescent lamps, high-pressure sodium lamps, mercury lamps, metal halide lamps, etc. Household appliances such as air conditioners, refrigerators, washing machines, vacuum cleaners, treadmills, microwaves, etc.

当然还有一类是容性负载：一般把负载带电容特性参数的负载，即契合电压超前电流特性的负载，称为容性负载。容性负载和理性负载性质类似。常见的液晶电视、电脑等精细电子设备，一般以为是容性负载。可是因为功率较小，装备发电机组时对发动电流问题要求不高，一般只需要等功率装备即可，反而要求发电机组有必要有安稳的电压输出功能。而大型容性负载一般应用在电理性负载较大的场所。首要是为了进步功率因数、削减损耗、进步设备带负载才能，并联恰当的电容器以用来“抵消”电感对无功功率“占用”的影响，其效果首要是用来补偿电路的功率因数的。

Of course, there is also a type of capacitive load: generally, a load with capacitive characteristic parameters, that is, a load that matches the voltage leading current characteristics, is called a capacitive load. Capacitive load and rational load have similar properties. Common fine electronic devices such as LCD TVs and computers are generally considered capacitive loads. However, due to its small power, there is not a high requirement for starting current when equipping a generator set. Generally, it only needs to wait for power equipment, but instead requires the generator set to have a stable voltage output function. Large capacitive loads are generally applied in places with large electrical loads. The primary purpose is to improve power factor, reduce losses, and improve the ability of equipment to carry loads. Parallel connection of appropriate capacitors is used to "offset" the impact of inductance on the "occupation" of reactive power, and its effect is primarily used to compensate for the power factor of the circuit.

综上来看，假如我们是为压缩机、电动机、水泵、风机等常见的理性负载设备装备发电机组，就需要考虑到发动电流所带来的影响了。因为这类设备的发动电流一般是额定电流的4-7倍，而发电机组的输出额定电流一般是输出功率的2倍，因而，为这类设备装备发电机组时，有必要确保发电机组的输出功率可以是负载设备额定功率的2-3.5倍。

In summary, if we are equipping generator sets for common rational load equipment such as compressors, motors, water pumps, and fans, we need to consider the impact of starting current. Because the starting current of such equipment is generally 4-7 times the rated current, and the output rated current of the generator set is generally 2 times the output power. Therefore, when equipping such equipment with a generator set, it is necessary to ensure that the output power of the generator set can be 2-3.5 times the rated power of the load equipment.

关于过载才能较弱的小型汽油发电机、燃气发电机组和品质较低的柴油发电机组，一般会按3-4倍设备额定功率装备对应的发电机组。不然，不但负载设备不能正常运转，并且还有可能发生焚毁发电机组的严重后果！

Small gasoline generators, gas generators with weaker overload capabilities, and diesel generators with lower quality are generally equipped with corresponding generator sets at 3-4 times the rated power of the equipment. Otherwise, not only will the load equipment not operate properly, but there may also be serious consequences of burning the generator set!

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This article is dedicated to the friendship of natural gas power generation units. For more relevant knowledge, please click on: https://www.huannengpower.cn Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned