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How to choose a diesel generator set?

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How to choose a diesel generator set?

  • 2019/07/16
1. basic or spare?
2. how much power?
3. single-phase or three-phase generator?
4.50 Hz, how is it?
5. choose where to use
6. neutral mode.
7. generating units continued work
8. container or shell.
9. automatic or manual

When purchasing a generator decision, you should always keep some basic things, such as the purchase of what type of power unit, where installation and how to install it. To better understand the situation. These guidelines will help you with the sales representative then select and purchase units dealing process

The choice of diesel generator sets is simple, and if you are willing to spend some time on the specific requirements of the spare parts research

1. basic or spare?
You first need to solve - will serve as the generator power source operation. In this case requires power - when you have no other power supply, and has a generating unit. If your equipment is composed of commercial power supply, and you need to protect yourself from the adverse consequences caused by lack of power or power. You should choose a backup source.

2. how much power is selected?
The correct choice of diesel generator power is probably the most critical moment. After all, it depends on the generator power and value. If the diesel generator power close to its rated power power consumption, will lead to further increase in the load of turbine generator, we recommend that any time there is no continuous work to the rated load capacity is less than the optimal loading of 25%. 35-75%. diesel generator diesel generator power may affect the additional factors of climatic factors. For example, mounted above the sea level and above the ambient temperature and humidity generator

3. single-phase or three-phase generator?
Generators can produce single-phase or three-phase voltage. In the power consumer household power network are relatively small, the motor load is almost non-existent, and is mainly composed of a single-phase load. Its requirement for industrial load, as a rule, the three-phase power supply. With the output of three-phase 400V in the diesel generator can always get single-phase voltage is 230 a few volts. And only used to supply consumers special for three-phase voltage 230V (400 Hz).

4.50 Hz, how is it?
The power frequency voltage of consumers is assumed to be 50 Hz for general industrial use. The applied power consumption of some special power supply voltage of 230 V and the frequency of 400Hz.

5.Use local choices
If the generator will be used as an independent power supply, as a rule, it can be in the open air temperature range at -500 DEG C to + 500 degrees. The exception is the case when the diesel generator has a fixed location. In this case, the power unit is mounted in a special heating and the ventilation room. In this case, the fixed diesel generator can be used in C + 50 to + 50 at room temperature.

6. neutral mode.
For automatic mobile facilities. According to the insulation selection of neutral supply and safety of power supply of independent power users, according to the "Regulations on electrical equipment, power consumers on fixed neutrality and protection measures. Therefore, the machine is used as a power reserve of industrial network" diesel was chosen for neutral grounding.

The unit continued to work in order to achieve unattended operation of generating units increase duration of two kinds of methods to increase the supply of fuel tank of diesel generator itself or by the amount of fuel from the tank to the supply tank automation management organization

The unmanned operation time can not use these two methods of autonomous mobile unit for 4 hours (electric power of 30 kW - 8 hours). The fuel tank automatic fuel supply capacity is greater in the continuous operation of 24 hours (60 kilowatts of power stations, in this case from the implementation of the automatic the supply of external storage container of fuel). The recommended time, unattended operation of backup diesel generator unit - 24 hours. Additional equipment continuous working time is 150-240 hours - an expensive option is not reasonable in economy.

Container type or mute type
If the unit is used in an unprotected environment, it is recommended to use a mute type enclosure to avoid airborne debris or mute trailers (the latter option will be lighter in transit)
If in a heating, ventilation room units as basic or standby power can choose not to take the case.
9. automatic or manual mode
In one operation, the diesel generator is dependent on the unit's destination and maintains the availability of the auxiliary power source, the four main control modes and the control generator set
Manual mode - the continuous presence of the staff. The most easy to operate generator sets. It has all the basic functions of managing and controlling
All the functions of automatic control of generator manual and automatic management mode and diesel. By at least personnel is launched into operation.
Manual operation and control from a distance - in addition to manual operation, can be controlled over a limited distance (up to 25m)

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