柴油发电机实质是一台三次谐波自励磁凸极式三相四线同步发电机，因具有输出功率大、适合移动等优点，故广泛用于厂矿、工程施工等场合。虽然功率不同的发电机，其绕组数据有所不同，但电路连接基本相同：

The diesel generator is essentially a third-order harmonic self-excited salient pole three-phase four wire synchronous generator, which is widely used in factories, mines, engineering construction and other occasions due to its advantages of high output power and suitability for movement. Although the winding data of generators with different powers may vary, the circuit connections are basically the same:

接线过程：柴油发电机出来的四根线。其中一根是N标记的线是零线。别的三根为火线。三相负载平衡。简单的一点说就是发电机是15KW现在带了一台5KW的三相电动机。

Wiring process: Four wires from the diesel generator. One of the lines marked with N is the zero line. The other three are live wires. Three phase load balancing. Simply put, the generator is 15KW and now comes with a 5KW three-phase motor.

假如说想再接一台2KW的单相电机的话很有可能造成三相不平衡。如果想单独接单相电用的话可以三根火线中随便拉一根当作火线。再接一根零线可以当作单相电用。要是想单独接一相出来用也可以。不过功率是不能太大的设备。那样容易造成三相不平衡。另外三相柴油发电机还得看多少KW的发电机。小的发电机见意接三相电后。可以接一些照明什么的。不主张再接功率大的电器。

If you want to connect another 2KW single-phase motor, it is very likely to cause three-phase imbalance. If you want to connect single-phase electricity separately, you can pull any one of the three live wires as a live wire. Connecting another neutral wire can be used as single-phase electricity. If you want to connect one phase separately, you can also use it. However, the power cannot be too high for devices. That can easily cause three-phase imbalance. In addition, it depends on how many KW generators there are for three-phase diesel generators. The small generator is connected to three-phase electricity. Can you provide some lighting or something. We do not advocate connecting high-power electrical appliances again.

接线注意事项：柴油发电机组接线时要注意以下几点：

Wiring precautions: When wiring diesel generator sets, pay attention to the following points:

1、接地线接线点一般是在柴油发电机组的底盘末端，在安装接地线时，必须接到合适的地线位置。

1. The grounding wire connection point is generally located at the end of the chassis of the diesel generator set. When installing the grounding wire, it must be connected to the appropriate grounding wire position.

2、交流发电机接地中线的连接通常由用户安装时决定，当柴油发电机组作为唯一电源时，中线必须直接连到工厂接地线上。

2. The connection of the grounding neutral of the AC generator is usually determined by the user during installation. When the diesel generator set is used as the sole power source, the neutral must be directly connected to the factory grounding wire.

3、较为复杂的安装，应选择接地中点以确保柴油发电机组正确的运行或保护设备，例如发现接地故障和将接地循环电流降到最小。

3. For more complex installations, the grounding midpoint should be selected to ensure the correct operation or protection of the diesel generator set, such as detecting grounding faults and minimizing the grounding circulating current.

4、接地线必须根据用户和地方当局的建议来安排。

4. The grounding wire must be arranged according to the suggestions of the user and local authorities.

5、保证设备接线一直得到有效的维持，关于接线系统的维护应严格按照说明书去做。

5. Ensure that the equipment wiring is always effectively maintained, and the maintenance of the wiring system should be strictly carried out in accordance with the instructions.

柴油电机组要做到精确接线，首先应辨别接线柱或引出线是相线仍是零线。通常情况下，发电机的各接线柱或引出线都用必然的标记来区别是相线仍是零线。只要加以重视就可进行辨别零线接线柱常常使用字母M或O作标记，也有在接线旁标以接地符号标示的。

To achieve precise wiring of diesel generator sets, the first step is to distinguish whether the terminal or outgoing line is a phase line or a zero line. Usually, the terminals or leads of a generator are marked with necessary markings to distinguish whether it is a phase line or a neutral line. As long as it is taken seriously, it can be distinguished that the zero wire terminal is often marked with the letters M or O, and there are also grounding symbols marked next to the wiring.

如果零线接线柱上无符号或符号恍惚不清，可在发电机运行历程中用电压表测试鉴定，不要采用“碰火”的操作。

If there is no symbol on the zero wire terminal or the symbol is unclear, a voltmeter can be used to test and identify it during the operation of the generator, and the operation of "touching fire" should not be used.

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