Diesel engine: diesel engine is the power output part of the whole diesel generator, accounting for 70% of the cost of diesel generator. It is the link that some bad manufacturers like to fake. Refurbished old machines and all brands have refurbished old machines, which may be difficult for non professionals to distinguish. However, there are still some flaws in the refurbishment machine, such as paint, especially dead corner paint, which is difficult to be consistent with the original factory. At present, almost all the well-known diesel engines in the market have imitation manufacturers. Some manufacturers use these imitation machines with the same shape to pretend to be famous brands, and use the means of making fake nameplates, printing real numbers, printing fake factory materials and so on to confuse the fake with the real, so as to greatly reduce the cost. It is difficult for non professionals to distinguish between OEM machines.

柴油发电机

Diesel generator

小马拉大车、混淆KVA和KW的关系。把KVA当成KW夸大功率，卖给客户。实际上KVA是视在功率，KW是有效功率，他们之间的关系为1KVA=0.8KW。进口柴油发电机一般用KVA表示功率单位，而国内用电设备一般都用KW表示，所以核算功率时应把KVA打8折换算成KW。不讲长行(额定)功率和备用功率的关系，仅说一个“功率”，把备用功率当作长行功率卖给客户。

A small horse pulls a cart and confuses the relationship between KVA and kW. Treat KVA as kW, exaggerate power and sell it to customers. In fact, KVA is apparent power and kW is effective power. The relationship between them is 1kVA = 0.8kw. Imported diesel generators are generally expressed in KVA, while domestic electrical equipment are generally expressed in kW. Therefore, when calculating power, KVA should be converted into kW at a discount of 20%. Don't talk about the relationship between long line (rated) power and standby power, just say & ldquo; Power & rdquo;, Sell standby power to customers as long-distance power.

实际上，后备功率=1.1x长行(额定)功率。

In fact, backup power = 1.1x long line (rated) power.

而且，后备功率只能在12小时连续运行中使用1小时。以相近厂名混淆视听、这些厂家属于投机取巧的，不敢做贴牌、翻新，就在厂名与柴油机名上做名堂，以相近厂名来和柴油机名混淆视听。

Moreover, the backup power can only be used for 1 hour in 12 hours of continuous operation. Confuse the public with similar factory names. These manufacturers are opportunistic and dare not do OEM and renovation. They make a name on the factory name and diesel engine name and confuse the public with similar factory names and diesel engine names.

发电机部分、发电机的作用是将柴油机的动力转化为电能，直接关系到输出电力的质量与稳定。励磁方式：发电机励磁方式分为相复励式和无刷自励磁式。无刷自励磁式以励磁稳定、维护简单的优势已成为主流，但仍有一些厂家出于成本考虑在300KW以下的发电柴油发电机内配置相复励式的发电机。定子线圈：定子线圈原先采用的均是全铜线，但随着制线技术的提高，出现了铜包铝芯线。区别于镀铜铝线，铜包铝芯线是采用特殊模具在拉线成型时铜包铝，铜层比镀铜厚的多。发电机定子线圈采用铜包铝芯线在性能上并无太大区别，只是使用寿命比全铜线定子线圈短的多。

The function of generator is to convert the power of diesel engine into electric energy, which is directly related to the quality and stability of output power. Excitation mode: the excitation mode of generator is divided into phase compound excitation type and brushless self excitation type. Brushless self excitation has become the mainstream because of its advantages of stable excitation and simple maintenance, but some manufacturers still configure phase compound excitation generators in power generation diesel generators below 300kW due to cost considerations. Stator coil: the stator coil was originally made of all copper wire, but with the improvement of wire making technology, copper-clad aluminum core wire appeared. Different from copper-plated aluminum wire, copper-clad aluminum core wire adopts special mold. When pulling wire, copper-clad aluminum layer is much thicker than copper-plated aluminum. The generator stator coil adopts copper-clad aluminum core wire, which has little difference in performance, but its service life is much shorter than that of all copper stator coil.

控制系统：普通标准型柴油发电机需人工倒闸，从停电到柴油发电机启动送电，一般需要10至30分钟。柴油发电机自动化控制分为半自动和全自动无人值守型。半自动为发电柴油发电机停电时自动启动、来电时自动停机，省去了启动停机的时间，但还是需要人工倒闸。

Control system: ordinary standard diesel generator needs manual switching. It usually takes 10 to 30 minutes from power failure to power transmission of diesel generator. The automatic control of diesel generator is divided into semi-automatic and full-automatic unattended type. The semi-automatic diesel generator starts automatically when the power is cut off and stops automatically when the power is called, which saves the time of starting and stopping, but it still needs manual switching.

附属件：正规柴油发电机附属标配件由 散热水箱、中冷器、油箱、底盘、蓄电池、控制柜、电池导线、器减震垫、空气滤清器、柴油滤清器、机油滤清器、波纹管、连接法兰、油管组成。附属件可作假部分也有很多

Accessories: standard accessories of regular diesel generator are composed of cooling water tank, intercooler, oil tank, chassis, battery, control cabinet, battery wire, shock absorber pad, air filter, diesel filter, oil filter, bellows, connecting flange and oil pipe. There are also many accessories that can be counterfeited