When choosing a diesel generator set, we are often confused about how big a diesel generator set to choose.
Indeed, choosing diesel generator set, the power selection of diesel generator sets is very critical.If you choose a diesel with too much power, it will increase the cost .Instead, if you choose small power , it can not meet your requirements . Here are 7 tips will help you how to choose the right one.
1.The power size of diesel generator set is generally determined by the number and total power of the electrical equipment.
Generator power is not a simple sum of the power of all electrical equipment, but also needs to consider the way of starting the electrical appliances.
General starting mode is divided into direct starting and step-down starting or soft starting, so, in addition to the need to consider the sum of all electrical power when choosing the power of the generator set, but also consider the starting power of each electrical appliance.
2.When choosing a diesel engine, we sometimes can’t distinguish its power clearly.Take 8kW diesel generator as an example. If the power unit is “KVA”, then the 8kW diesel generator is 10KVA. The conversion relationship between them is IKVA= 0.8kW.
3.The “rated power” and “reserve power” of diesel generators are not the same thing!Be careful to distinguish clearly!
Take the 100KW diesel generator set as an example. The rated power is 100KW and the reserve power is 110KW.Rated work rate is the normal continuous operation of the power, and the reserve power is only 1 hour of power!
4.To avoid the “small horse cart” type of diesel generator, resulting in the power generation is not enough, can not be used normally!
Take a 15KW single-cylinder diesel generator as an example. Generally speaking, the diesel engine power =1.1 generator power in the industry. Due to the mechanical loss, 15KW generators should be equipped with diesel engines with 15KW *1.1= 16.5kW (22 horsepower) and above.If the optional ZS1115 diesel engine (14.71KW) is “small horse big car”, on the one hand, it leads to insufficient power generation, on the other hand, it leads to the reduction of unit life, frequent maintenance, high maintenance costs.
5.Diesel generator configuration is different, the price is not the same, can not be simply compared to the price, do not consider the configuration.
Diesel generator configuration such as: motor whether all copper, single phase or three phase, is 190 or 204, frame is round tube or square tube, round tube side tube size, what is the size of wheels, wheel, simple or strengthening, and with what kind of control panel, take what class battery, how much capacity battery, big or small tank tank, with or without ATS (automatic switching device), speed is electrical or mechanical speed, whether or not to bring a air switch, etc.In fact, these optional configuration has a great impact on the price, so do not talk about configuration simple than the price.
6.When buying diesel generator set to carefully check the appearance, so as not to buy inferior machine or even refurbished machine.
7.Some operating environments require high configuration of diesel generators, which cannot be replaced by ordinary diesel generators.
For example, the plateau diesel generator set (to adapt to high altitude, low pressure, thin air environment);For example, the diesel generator set used in power base station (requires long time continuous trouble-free operation, long durability, low failure rate and high stability);For example, Marine diesel generator sets (the surface of the unit is required to be rust-proof, to avoid seawater corrosion) and so on.These operating environments have strict requirements for diesel engines and generators, which cannot be replaced by ordinary diesel generators.The small diesel generator industry is a very mature industry.
Conclusion
I believe that after reading the above Suggestions, you should have a good idea when choosing the right diesel generator.
