Novice in buy diesel generator should pay attention to the details

For a diesel generator doorways,deep in buying large machinery,diesel generators that we first must understand the first industry is how to choose and buy diesel generator,what are the key points in the novice needs to be aware of when buying diesel generator?
1.The seller told the brand of diesel generator,don't offer the origin of diesel generator.
For example the United States cummins, Volvo, in fact, no one diesel generator may be performed by a company independent. New unit should be a comprehensive understanding of the diesel engine, generator, control cabinet manufacturers and brands, to comprehensive assessment of the level of the unit.
2.Diesel engine power  is as large as the generator power is configured to, in order to reduce the cost.
In fact, the general provisions of diesel engine power generator power 10% or higher, because there are mechanical wear and tear. More bad, and the diesel engine horsepower as kw false positives to the user, and with less than diesel generator power allocation unit, commonly known as: small horse-drawn cart, unit and reduced life spans, frequent maintenance the fee is high.
3, Not rated power and backup power relations, said only a "power", the backup power as a power rating to sell to customers.

In fact, the backup power = 1.1 x prime power. Moreover, backup power can only use 1 hour in 12 hours continuous running.

4, The relationship between confusion KW and KVA.

Sell KVA as KW to exaggerate the power, to the customer. In fact KVA is apparent power, KW is the effective power, the relationship between them is 1 KVA = 0.8 KW. Import units generally expressed in KVA power unit, and domestic electricity equipment is generally expressed in KW, so accounting power should be the KVA 8 discount when converted to KW.

5,Will not take protection function (commonly known as the four protection) unit as a complete protection function of units sold to customers.

What's more, the instrument is not complete, with no air switch unit sales to the customer. In fact, the general provisions of above 10 kw unit must take the whole instrument (commonly known as the five tables) and air switch; Large units and automation units must contain the four protection function.

6, Don't talk about random accessories.

With or without silencer, oil tank, oil pipe, for example, take what class battery, how much capacity battery, battery and so on. In fact, it is very important to these attachments, must be stated in the contract. What is more even without a radiator fan, let the customer since the open pool.

7, Insisting that the price and delivery time.

Don't talk about brand grade of the diesel engine and generator, control system configuration, don't talk about after-sales service, only talk about the price and delivery time. There will also be the power station for oil machine, such as: Marine diesel engine, automotive diesel engine for generator set. The end products of generating units - electric (voltage and frequency) to ensure quality. Too low price units generally have problems, commonly known as: only buy the wrong not to sell wrong!

8, second-hand refurbished machine.

Sell used a refurbished machine as a new machine to the customer, and will be renovated with new diesel engine generator and control cabinet, make general non-specialist user root can't distinguish whether new or old machine.
All in all, a novice when buying diesel generator should be careful to ask, do not rush the introduction to listen to the somebody else but to buy, before you buy diesel generator will be known to the above several ways.