How to choose a suitable diesel generator set?

1. Standby and common use

Standby diesel generator sets refer to sets that are basically normal in the city power supply and are only used for temporary power generation when there is an occasional power outage. The frequency of use is not high, the use time is short, the mechanical loss is low, and the failure rate is low. In this case, there is no need to blindly pursue sets configured with high-end imported diesel engines. Sets configured with domestic diesel engines can fully meet the use. There is no need to consider too much about indicators such as fuel consumption, noise, failure rate, and overhaul time.

Common diesel generator sets refer to diesel generator sets used as the main power source when there is no city power. The use time is long, the mechanical loss is high, and the failure rate is high. In this case, the minimum configuration is recommended to be a joint venture brand diesel engine, and it is difficult for domestic diesel engines to meet the requirements.

2. Standby power and common power

Standby power refers to the operating power of the unit under overload conditions, which is generally 110% of the main power.

Common power refers to the continuous operation power of the generator set for 12 hours, that is, 400KW.

3. Power selection of diesel generator sets

The capacity of diesel generator sets is limited. Unlike the power grid, the starting current of the load must be taken into account. Therefore, it is not entirely correct to select the total power of the electrical appliance as the power for purchasing a diesel generator set.

The starting current will be different if the starting method is different. For example, the soft starter will only generate 2 to 3 times the starting current, and the inverter start is stepless start without starting impact current. Whether the electrical appliance is loaded when starting also determines the size of the starting current. It is necessary to fully understand the specific electrical conditions in order to more economically calculate the required diesel generator power, and avoid the situation where the calculation error is not available after purchase. For the selection of specific power, please communicate in detail with the sales consultant of the COMLER generator manufacturer, and our sales consultant will make a thoughtful plan for you.

4. Failure rate and overhaul time

In terms of failure rate and overhaul time, domestic diesel engines cannot be compared with joint ventures or imported brands, but domestic unit parts are cheap. Without calculating the loss of production and shutdown caused by failure, the two are almost the same in terms of economic maintenance. COMLER generator sets select each part, from diesel engines to relays, all of which are famous brands, reducing the failure rate to a minimum.

5. Fuel consumption

Another indicator that needs to be paid attention to in common diesel generator sets is fuel consumption. The full-load fuel consumption of domestic diesel engines is generally 210g/kw.h to 240g/kw.h, the full-load fuel consumption of joint venture brand diesel engines is generally 200g/kw.h to 220g/kw.h, and the full-load fuel consumption of imported brand diesel engines is generally 190g/kw.h to 210g/kw.h.

6. Noise

The national standard for diesel generator noise is less than 102 decibels at 7 meters in an open space. In fact, 102 decibels already make people feel uncomfortable, and even after isolation in an ordinary machine room, it can still reach more than 90 decibels. When used in places that require quietness, such as offices, schools, and hospitals, a low-noise chassis must be installed. The low-noise chassis produced by "COMLER" all adopt export standards, and the silent diesel generator sets are manufactured in strict accordance with environmental protection standards.