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!

常用電器設(shè)備絕大多數(shù)是阻性負(fù)載和理性負(fù)載。

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

阻性負(fù)載：設(shè)備進行作業(yè)時為純阻性負(fù)載稱為“阻性負(fù)載”。

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, 

理性負(fù)載：一般情況下，一般把負(fù)載帶電感參數(shù)的負(fù)載，即契合電流超前電壓特性的負(fù)載，成為理性負(fù)載。常見的理性負(fù)載設(shè)備有：變壓器、壓縮機、電動機、水泵、風(fēng)機、繼電器、日光燈、高壓鈉燈、汞燈、金屬鹵化物燈等。如空調(diào)、電冰箱、洗衣機、吸塵器、跑步機、微波爐等家用電器。

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.

當(dāng)然還有一類是容性負(fù)載：一般把負(fù)載帶電容特性參數(shù)的負(fù)載，即契合電壓超前電流特性的負(fù)載，稱為容性負(fù)載。容性負(fù)載和理性負(fù)載性質(zhì)類似。常見的液晶電視、電腦等精細(xì)電子設(shè)備，一般以為是容性負(fù)載?？墒且驗楣β瘦^小，裝備發(fā)電機組時對發(fā)動電流問題要求不高，一般只需要等功率裝備即可，反而要求發(fā)電機組有必要有安穩(wěn)的電壓輸出功能。而大型容性負(fù)載一般應(yīng)用在電理性負(fù)載較大的場所。首要是為了進步功率因數(shù)、削減損耗、進步設(shè)備帶負(fù)載才能，并聯(lián)恰當(dāng)?shù)碾娙萜饕杂脕?ldquo;抵消”電感對無功功率“占用”的影響，其效果首要是用來補償電路的功率因數(shù)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.

綜上來看，假如我們是為壓縮機、電動機、水泵、風(fēng)機等常見的理性負(fù)載設(shè)備裝備發(fā)電機組，就需要考慮到發(fā)動電流所帶來的影響了。因為這類設(shè)備的發(fā)動電流一般是額定電流的4-7倍，而發(fā)電機組的輸出額定電流一般是輸出功率的2倍，因而，為這類設(shè)備裝備發(fā)電機組時，有必要確保發(fā)電機組的輸出功率可以是負(fù)載設(shè)備額定功率的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.

關(guān)于過載才能較弱的小型汽油發(fā)電機、燃?xì)獍l(fā)電機組和品質(zhì)較低的柴油發(fā)電機組，一般會按3-4倍設(shè)備額定功率裝備對應(yīng)的發(fā)電機組。不然，不但負(fù)載設(shè)備不能正常運轉(zhuǎn)，并且還有可能發(fā)生焚毀發(fā)電機組的嚴(yán)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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