With the popularity of industry, the demand for electricity is increasing, and diesel generator sets are also beginning to sell well. The general diesel generator sets are mainly divided into four parts: diesel engines, generators, control systems, and accessories. So what should we pay attention to when purchasing?

1 Confuse the relationship between KVA and KW . Think of KVA as KW and sell it to customers. In fact, KVA is the apparent power, KW is the effective power, and the relationship between them is 1KVA=0.8KW . Imported units generally KVA expressed by power units, while domestic electrical equipment are generally expressed in KW, accounting power should be so KVA to 20% discount in terms of KW.

2 , do not talk about the relationship between long-term (rated) power and backup power, only say a "power", the backup power is sold to customers as long-term power. In fact, backup power = 1.1 x long line power. Moreover, the backup power can only be used for 1 hour in 12 hours of continuous operation .

3. The power of the diesel engine is the same as the power of the generator to reduce the cost. In fact, the industry generally stipulates that diesel engine power ≥ generator power is 10% because of mechanical losses. Even worse, some diesel engine horsepower is misreported to the user as kilowatts, and the diesel engine is used to configure the unit. It is commonly known as: small horse-drawn cart, and the unit life is reduced, maintenance is frequent, and the use fee is No high.

4 , the second mobile phone refurbished machine as a brand new machine to sell to customers, and some will be refurbished diesel engine with a new generator and control cabinet, so that the general non-professional users can not tell whether it is a new machine or an old machine.

5 , only report the diesel engine or generator brand, not reported to the place of production, not reported to the unit brand. Such as Cummins in the United States, Volvo in Sweden, and Steinford in the United Kingdom. In fact, it is impossible for any diesel generator set to be completed independently by a single company. Customers should fully understand the diesel engine, generator, control cabinet manufacturer and brand of the unit in order to comprehensively evaluate the grade of the unit.

6. Sell ​​the unit without protection function (commonly known as four protections) as a fully functional unit to the customer. What's more, sell the unit with incomplete meter and no air switch to the customer. In fact, the industry generally requires more than 10KW units must be equipped with full instrument (commonly known as five meters) and air switches; large units and automation units must have self-protection.

7 . Regardless of the brand grade of diesel engines and generators, the configuration of control systems, not to mention after-sales service, we only talk about price and delivery time. Some will also use non-power station special oil engines, such as: marine diesel engines, and vehicle diesel engines for generator sets. The quality of the end product of the unit – electricity (voltage and frequency) cannot be guaranteed. Units with too low prices generally have problems, commonly known as: only buy the wrong and not sell wrong!

8 , do not talk about random accessories, such as with no silencer, fuel tank, oil pipeline, what grade battery, large capacity battery, several batteries and so on. In fact, these attachments are important and must be stated in the contract. What's more, even the water tank fan is not included, allowing customers to open the pool.

Diesel generator sets are important backup power supply equipment. They should be used with caution when purchasing, and they can be used easily.