How to choose the silent generator set used in hotel?
2022-05-06
For hotels, guesthouses and other public places, when using the generator set, we must ensure that it will not bring noise pollution to the surrounding environment, which will affect the residents' occupancy experience. For customers in the hotel industry, silent generator set is a good choice. What should be understood before purchasing such equipment? Raines gives you a brief analysis.
1. Determination of common silent diesel generator capacity
According to the selection that the output power of the unit can meet the maximum calculated load of the whole project for long-term continuous operation, and the standby unit capacity of the generator unit shall be determined according to the importance of the load. The continuous output power of diesel engine is generally 0.9 times of the rated power.
2. Determination of the number of common silent diesel generators
The number of commonly used silent diesel generators is usually more than 2 to ensure the continuity of power supply and adapt to the change of power load curve. If there are many units, the number of generator units can be determined according to the change of power load, so that the diesel engine often operates under economic load, so as to reduce fuel consumption and power generation cost. The best economic operation state of diesel engine is between 75% - 90% of the rated power. In order to ensure the continuity of power supply, the standby unit shall be set for the common unit itself, so that the generator unit can still meet the uninterrupted power supply for important power loads when the unit is overhauled or shut down for inspection.
3. Determination of speed of common silent diesel generator
In order to reduce wear and increase the service life of the unit, medium and low-speed units with rated speed not greater than 1500r / min should be selected for common generator units, and medium and high-speed units can be selected for standby units. The units of the same power station shall be of the same model and capacity, so as to use the same spare parts and facilitate maintenance and management. For projects with large load changes, units of the same series and different capacities can also be selected. The determination of generator output rated voltage is the same as that of emergency generator set, which is generally 400V. High voltage generator set can be selected for some projects with large power consumption and long transmission distance.
4. Control of common silent diesel generator
Common units shall generally be connected in parallel to simplify the main wiring of power distribution, so that the power supply will not be interrupted through parallel operation, load transfer and unit switching during unit start-up and shutdown. The unit shall be equipped with measurement and control devices of the unit, and the speed regulation and excitation regulation devices of the unit shall be applicable to the requirements of parallel operation. For the standby generator set supplying power to important loads, automatic diesel generator set should be selected. When the external power supply fails to power off, it can start quickly and automatically to restore the power supply to important loads.
1. Determination of common silent diesel generator capacity
According to the selection that the output power of the unit can meet the maximum calculated load of the whole project for long-term continuous operation, and the standby unit capacity of the generator unit shall be determined according to the importance of the load. The continuous output power of diesel engine is generally 0.9 times of the rated power.
2. Determination of the number of common silent diesel generators
The number of commonly used silent diesel generators is usually more than 2 to ensure the continuity of power supply and adapt to the change of power load curve. If there are many units, the number of generator units can be determined according to the change of power load, so that the diesel engine often operates under economic load, so as to reduce fuel consumption and power generation cost. The best economic operation state of diesel engine is between 75% - 90% of the rated power. In order to ensure the continuity of power supply, the standby unit shall be set for the common unit itself, so that the generator unit can still meet the uninterrupted power supply for important power loads when the unit is overhauled or shut down for inspection.
3. Determination of speed of common silent diesel generator
In order to reduce wear and increase the service life of the unit, medium and low-speed units with rated speed not greater than 1500r / min should be selected for common generator units, and medium and high-speed units can be selected for standby units. The units of the same power station shall be of the same model and capacity, so as to use the same spare parts and facilitate maintenance and management. For projects with large load changes, units of the same series and different capacities can also be selected. The determination of generator output rated voltage is the same as that of emergency generator set, which is generally 400V. High voltage generator set can be selected for some projects with large power consumption and long transmission distance.
4. Control of common silent diesel generator
Common units shall generally be connected in parallel to simplify the main wiring of power distribution, so that the power supply will not be interrupted through parallel operation, load transfer and unit switching during unit start-up and shutdown. The unit shall be equipped with measurement and control devices of the unit, and the speed regulation and excitation regulation devices of the unit shall be applicable to the requirements of parallel operation. For the standby generator set supplying power to important loads, automatic diesel generator set should be selected. When the external power supply fails to power off, it can start quickly and automatically to restore the power supply to important loads.