Diesel generators are a reliable and inexpensive power source. Such power plants are purchased both for backup power supply in case of a power outage, and for constant power supply. Many models are designed for long battery life. In addition, diesel generators are more economical to use, their maintenance is somewhat easier than that of gasoline units. Let's take a closer look at the process of choosing them, and at the same time discuss the 3 best diesel generators.
CONTENT
- 1 How to choose a diesel generator
- 2 Rating of the best diesel generators
- 3 FAQ
How to choose a diesel generator
The diesel generator model should be selected based on the purpose of use. To ensure the operation of household appliances in a country house, in the country, during the repair, a compact model with a capacity of up to 10 kW is suitable. To ensure the work of the workshop, more productive equipment is needed. Stationary power plants are capable of "delivering" up to 200 kW. Most of these models are equipped with a liquid cooling system that allows continuous operation.
When choosing a diesel generator, you need to pay attention to the following indicators:
- Power;
- Engine's type;
- Cooling system type;
- Continuity of work;
- Phase;
- Starter type.
Power
This is the main indicator that should be considered when choosing a diesel generator. To determine the choice of equipment, it is necessary to correctly calculate the load. This must be done based on the consumption of connected devices and equipment. Their total power must not be lower than the generator power, this will avoid overloading. It is not particularly recommended to buy a generator of too high power, since the unit will run "idle".
You can calculate the power of a power plant based on the indicators of consumption of household appliances. You can find out this information in the instructions. It is not enough to simply add up the power of household appliances; it is necessary to take into account the voltage surge when connecting. It is determined by the value of the starting current. To the obtained value, add 10% of the reserve.
engine's type
The engine on generators can be two- and four-stroke. Two-stroke engines are simple in design, they do not have a gas distribution and lubrication system. Models equipped with such an internal combustion engine are inexpensive. Among the disadvantages of two-stroke engines, it is worth highlighting the increased fuel consumption, difficulty in maintenance, and low service life.
Four-stroke engines are more complex in design. They are more expensive, but at the same time, their fuel consumption (compared to two-stroke ones) is lower, the exhaust is cleaner, and such units are quieter.
Cooling system type
Diesel generators can be equipped with air and liquid cooling systems. Most models are air cooled. Only stationary power plants are equipped with a liquid system.
Continuous working time
The duration of operation without the need for refueling is determined by the volume of the fuel tank. The larger its capacity, the longer the battery life will be. Moreover, if you use the station only 4-5 hours a day, buying a model with a fuel tank designed for 18 hours is irrational. It's not only about the high price of the equipment, but also about the size. The large fuel tank increases the size of the equipment. Calculate on average how many hours a power plant will be used per day, and based on this, make a choice.
Phase
Diesel generators can supply voltage of 220 or 380 V, that is, they can be single or three-phase. It is worth choosing a power plant model based on the type of connected equipment. Household appliances are powered from a single-phase network. Professional equipment such as machine tools and compressors operate from 380 V.
If you need a generator to supply single- and three-phase equipment at once, pay attention to models with several types of outputs: 220 and 380 V.
Starter type
The generator can be started manually, electrically or in combination. Hand starters are simple and reliable in design. To start the device, you need to pull the handle to give an initial impulse. The electric start is battery operated, in this case, to start the generator, it is enough to press just one button or turn the key.
Rating of the best diesel generators
We offer our TOP-3 diesel power plants
Best diesel generator up to 10 kW
1. Fubag DS 11000 A ES
This is a model equipped with an electric and manual start, an automation connector. The indicator of the maximum power is 11 kW, nominal - 10 kW. The station is powered by a two-cylinder engine with an air cooling system. The fuel tank is designed for 25 liters, which ensures long-term operation without the need to refuel. There are 2 220 V sockets on the case: 16 and 32 A.
The generator is equipped with a comprehensive protection system: overload, short circuit and oil-free operation. A panel for digital indication of the main parameters is displayed on the body. It is possible to connect the unit for automatic control through a special connector. It is purchased separately. The average cost of a generator is 195,000 rubles.
Price:₽ 194 980
Fubag DS 11000 A ES
The best 5 kW diesel generator for home and garden
2. Hyundai DHY-6000 LE
The cost of the model is 78,000 rubles on average. The indicator of the maximum power of the station is 5.5 kW, the nominal power is 5 kW. The device is equipped with two 220 V sockets for 16 and 32 A. The fuel tank holds 14 liters and provides continuous operation for 10 hours (at 75% load). Manual and electric start is provided, this allows you to start work with one turn of the key.
The equipment is operated by a 4-stroke internal combustion engine. The motor is equipped with an overload protection system to ensure a long service life. A display for indicating current parameters is located on the body. The oil level can be monitored using an oil dipstick.
Price:₽ 77 990
Hyundai DHY-6000 LE
Best 2kw Diesel Generator
3. CHAMPION DG3601E
On average, the price is 38,100 rubles. The maximum power of the model is 3 kW, nominal at a voltage of 220 V - 2.7 kW. A manual and electric starter is provided. Two 220 V sockets protected by covers (16 and 8.3 A) and one 12 V outlet are brought to the body. The fuel tank has a capacity of 12.5 liters. The dipstick allows you to check the oil level.
The generator is equipped with a sturdy frame to protect the mechanism from damage. A single-cylinder 4-stroke engine is installed. It provides stable performance. The generator has a simple control panel with ergonomic elements.
Price:₽ 38 100
CHAMPION DG3601E
FAQ
Why does the diesel generator give out 100V instead of 220V?
If, at the rated load level, the generator generates an undervoltage, the cause must be investigated immediately. Otherwise, the device will most likely fail completely. The most common cause is contact burnout or corrosion. Most often, such defects occur during long-term operation in adverse conditions or work with maximum load.
Using a multimeter, you need to check the voltage reading at the output terminals. To test the entire output circuit, you will most likely need to remove the protective cover. If no corrosion or burnt contacts are found during visual inspection, use a measuring device to find the place where there is a voltage drop. Weakest points: fuse box, circuit breaker, contacts on the outlet. Burnt wires should be re-soldered to new ones, in case of oxidation - remove corrosion.
