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Diesel Generator sets
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Generator manufacturers teach you the skills to distinguish the authenticity of diesel generator sets
June 02, 2022
Diesel generator sets are widely used in various fields such as communication, mining, construction, forest area, field construction, etc. because of their ability to automatically start power generation, reliable operation, guarantee the voltage and frequency of power supply, and meet the requirements of electromechanical equipment. There are various brands of diesel generator sets, some are real and some are fake, some generator manufacturers are "selling dog meat", and some use old generator sets for refurbishment and resale, which causes consumers to suffer huge economic losses. When purchasing a diesel generator set, you must carefully identify the authenticity of the generator set. Here are some tips for distinguishing the authenticity of the diesel generator set.
First, the authenticity of diesel engine identification method
Diesel generators are mainly composed of diesel engines, alternators, control systems and other auxiliary components. As one of the important components of generator sets, diesel engines play a very important role in the overall price of the set. Common engine brands such as: Weichai, Guangxi Yuchai, Cummins, Perkins, Shangchai and other series, the machines of these brands are also counterfeit, such as: Weifang series (engines produced by some small local manufacturers in Weifang) and Weichai Co., Ltd. (a well-known brand in China) sells Weifang series machines as Weichai Co., Ltd. machines, so users need to distinguish the true and false. The common method is to check the diesel engine model (compare the diesel engine model on the official website), call 400 calls and other methods to judge.
2. Judgment method for refurbishment and resale of second-hand units
The generator set market is a mixed bag, and all brands may have refurbished old machines, and it may be difficult for non-professionals to distinguish them. However, there are still some flaws in the refurbished machine, such as paint, especially the dead corner paint, which is difficult to be consistent with the original factory. When purchasing, users should pay attention to checking.
3. "Counterfeit" in power
Some generator manufacturers confuse the relationship between KVA and KW of diesel generator sets. In fact, KVA is commonly used abroad, and KW is commonly used domestic effective power. The relationship between them is 1KW=1.25KVA. Imported units are generally expressed in KVA, while domestic electrical equipment is generally expressed in KW, so users should convert KVA into KW at a 20% discount when purchasing a unit to calculate the power.
There is also a "counterfeit" in terms of power. The generator manufacturer will not talk about the relationship between the common (rated) power and the standby power, but only say one "power", and sell the standby power as a common power to customers. In practice, standby power = 1.1x normal (rated) power. Also, the backup power can only be used for 1 hour out of 12 hours of continuous operation. For example, the difference between the rated power of 500kw and the standby power of 500kw is very large, and there is also a big difference in price. In order to avoid the situation that the power of the unit does not meet the actual use requirements, users must pay attention to consultation and identification when purchasing diesel generator sets. The actual power situation of the generator set.
After understanding the above three skills, users can avoid some traps when purchasing diesel generator sets
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