Eight pitfalls you should pay attention to when purchasing a diesel engine unit

The editor reminds customers to be careful of the eight traps you should pay attention to when purchasing diesel generator sets. 1. Confusing the relationship between KVA and KW. Treat KVA as KW to exaggerate the power and sell it to customers. In fact, KVA is the apparent power and KW is the power. The relationship between them is IKVA=0.8KW. Imported units generally use KVA to express the power unit, while domestic electrical equipment is generally expressed in KW, so when calculating power, KVA should be converted into KW at a 20% discount. 2. We do not talk about the relationship between long-line (rated) power and backup power. We only talk about 'power' and sell the backup power to customers as long-line power. In fact, reserve power = 1.1x long line power. Moreover, the backup power can only be used for 1 hour out of 12 hours of continuous operation. 3. The power of the diesel engine is configured to be the same as that of the generator in order to reduce costs. In fact, the industry generally stipulates that diesel engine power ≥ 10% of generator power because of mechanical losses. Even worse, some misreport the diesel engine horsepower to the user as kilowatts, and configure the unit with a diesel engine that is smaller than the generator power, commonly known as: a small horse-drawn cart. As a result, the life of the unit is reduced, maintenance is frequent, and the usage cost is high. Too high. 4. The refurbished second-hand mobile phones are sold to customers as brand-new machines, and some refurbished diesel engines are equipped with brand-new diesel generator sets and control cabinets, so that ordinary non-professional users cannot tell whether it is a new machine or an old machine. 5. Only report the brand of the diesel engine or generator, not the place of origin, nor the brand of the unit. Such as Cummins, Swedish Volvo, and British Stanford. In fact, no diesel generator set can be completed independently by one company. Customers should have a comprehensive understanding of the manufacturer and brand of the unit's diesel engine, generator, and control cabinet in order to comprehensively evaluate the grade of the unit. 6. Sell the units without protection functions (commonly known as four protections) to customers as units with complete protection functions. What's more, units with incomplete instruments and no air switch are sold to customers. In fact, the industry generally stipulates that units above 10KW must be equipped with full instruments (commonly known as five meters) and air switches; large units and automated units must be equipped with self-protection functions. 7. Let’s not talk about the brand grade and control system configuration of the diesel engine and generator, nor the after-sales service, but only talk about price and delivery time. Some also use non-power station oil engines, such as marine diesel engines and vehicle diesel engines, in generator sets. As a result, the quality of electricity (voltage and frequency), the end product of the unit, cannot be guaranteed. Units that are priced too low generally have problems. Commonly known as: you only bought the wrong unit, not the wrong one! 8. Don’t talk about the random accessories, such as whether it has a muffler, a fuel tank, a fuel pipe, what grade of battery, what capacity of battery, how many batteries, etc. In fact, these attachments are very important and must be stated in the contract. What's more, they don't even come with a water tank fan, allowing customers to create their own open pools.