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.

柴油發(fā)電機(jī)

Diesel generator

小馬拉大車、混淆KVA和KW的關(guān)系。把KVA當(dāng)成KW夸大功率，賣給客戶。實(shí)際上KVA是視在功率，KW是有效功率，他們之間的關(guān)系為1KVA=0.8KW。進(jìn)口柴油發(fā)電機(jī)一般用KVA表示功率單位，而國內(nèi)用電設(shè)備一般都用KW表示，所以核算功率時(shí)應(yīng)把KVA打8折換算成KW。不講長行(額定)功率和備用功率的關(guān)系，僅說一個(gè)“功率”，把備用功率當(dāng)作長行功率賣給客戶。

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.

實(shí)際上，后備功率=1.1x長行(額定)功率。

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

而且，后備功率只能在12小時(shí)連續(xù)運(yùn)行中使用1小時(shí)。以相近廠名混淆視聽、這些廠家屬于投機(jī)取巧的，不敢做貼牌、翻新，就在廠名與柴油機(jī)名上做名堂，以相近廠名來和柴油機(jī)名混淆視聽。

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.

發(fā)電機(jī)部分、發(fā)電機(jī)的作用是將柴油機(jī)的動(dòng)力轉(zhuǎn)化為電能，直接關(guān)系到輸出電力的質(zhì)量與穩(wěn)定。勵(lì)磁方式：發(fā)電機(jī)勵(lì)磁方式分為相復(fù)勵(lì)式和無刷自勵(lì)磁式。無刷自勵(lì)磁式以勵(lì)磁穩(wěn)定、維護(hù)簡單的優(yōu)勢已成為主流，但仍有一些廠家出于成本考慮在300KW以下的發(fā)電柴油發(fā)電機(jī)內(nèi)配置相復(fù)勵(lì)式的發(fā)電機(jī)。定子線圈：定子線圈原先采用的均是全銅線，但隨著制線技術(shù)的提高，出現(xiàn)了銅包鋁芯線。區(qū)別于鍍銅鋁線，銅包鋁芯線是采用特殊模具在拉線成型時(shí)銅包鋁，銅層比鍍銅厚的多。發(fā)電機(jī)定子線圈采用銅包鋁芯線在性能上并無太大區(qū)別，只是使用壽命比全銅線定子線圈短的多。

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.

控制系統(tǒng)：普通標(biāo)準(zhǔn)型柴油發(fā)電機(jī)需人工倒閘，從停電到柴油發(fā)電機(jī)啟動(dòng)送電，一般需要10至30分鐘。柴油發(fā)電機(jī)自動(dòng)化控制分為半自動(dòng)和全自動(dòng)無人值守型。半自動(dòng)為發(fā)電柴油發(fā)電機(jī)停電時(shí)自動(dòng)啟動(dòng)、來電時(shí)自動(dòng)停機(jī)，省去了啟動(dòng)停機(jī)的時(shí)間，但還是需要人工倒閘。

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.

附屬件：正規(guī)柴油發(fā)電機(jī)附屬標(biāo)配件由 散熱水箱、中冷器、油箱、底盤、蓄電池、控制柜、電池導(dǎo)線、器減震墊、空氣濾清器、柴油濾清器、機(jī)油濾清器、波紋管、連接法蘭、油管組成。附屬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