Many customers basically do not understand the diesel generator set, and they are very passive when buying the unit. In fact, there are many places to pay attention to when purchasing diesel generator sets. Beidou Power This will give you a detailed talk about the relevant content you should know before buying diesel generator sets. The details are as follows:
1, diesel engine power and generator power matching.
The power of the diesel engine is configured as large as the power of the generator in order to reduce the cost. In fact, the industry generally stipulates that the diesel engine power ≥ 10% of the generator power, because of mechanical losses. Worse, there are diesel engine horsepower as kilowatt misreported to the user, and the diesel engine with less than the power of the generator to configure the unit, commonly known as: small horse, and the unit life is reduced, frequent maintenance, and the user fee is high. 1 horsepower = 0.735KW.
2, the second mobile phone refurbished machine as a new machine to sell customers, there 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.
3, the relationship between main power (rated power) and standby power.
Just say one “power” and sell the standby power to the customer as the main power. Actually, standby power =1.1x main power. Moreover, the standby power can only be used for 1 hour out of 12 hours of continuous operation.
4, only report diesel engine or generator brand, do not report the origin, do not report the unit brand.
Such as USA Cummins, Sweden volvo, UK Stanford. In fact, any diesel generator set can not be completed by a company independently. Customers should fully understand the diesel engine, generator, control cabinet manufacturers and brands of the unit in order to comprehensively evaluate the grade of the unit.
5, do not talk about the brand grade of diesel engines and generators, control system configuration, do not talk about after-sales service, only talk about price and delivery time. Some also use non-power station special oil engines, such as: Marine diesel engines, automotive diesel engines for generator sets. The end product of the unit – the quality of electricity (voltage and frequency) can not be guaranteed. Too low price units generally have problems, commonly known as: only buy wrong not sell wrong!
6, do not talk about random accessories, such as with or without silencer, fuel tank, oil pipeline, what grade of battery, how much capacity battery, several batteries and so on. In fact, these annexes are so important that they must be written down in the contract. What is more, even the water tank fan is not brought, so that the customer can make an open pool.
7. The unit without protection function (commonly known as four protection) is sold to customers as a unit with complete protection function.
What is more, the unit with incomplete instrumentation and no air switch is marketed to customers. In fact, the industry generally stipulates that the unit above 10KW must have a full instrument (commonly known as five tables) and air switch; Large units and automatic units must have self-four protection function.
8, KVA and the relationship with KW kW.
Some bad businesses exaggerate the power of KVA as KW and sell it to customers. In fact, KVA is the apparent power, KW is the effective power, the relationship between them is IKVA=1.2KW. Imported units generally use KVA to indicate power units, while domestic electrical equipment is generally expressed in KW, so when calculating power, KVA should be converted into KW divided by 1.2.
9, the choice of diesel generator cable
There are many kinds of cable specifications used by diesel generator sets, and the capacity to carry current is different in different working environments and cable materials.
For more questions about the generator set, please call the Beidou Power team. More than ten years of professional production and sales of power generation equipment experience, more professional engineer team to serve you, choose Beidou power is to choose rest assured, welcome on-site factory inspection.
Post time: Jan-10-2025