About Fengjun 5 European version generator abnormal noise
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6 FAQs about [Fengjun 5 European version generator abnormal noise]
How do I reduce genset noise?
Here’s how to lower genset noise to an acceptable level. Generator noise sources include exhaust noise, mechanical noise from the engine, noise from the generator rotor passing the stationary poles, cooling system noise, and vibration. All of these noise sources must be addressed to achieve a quiet generator installation (see Figure 2).
Do gensets make noise?
The noise most typically associated with genset operation is diesel engine exhaust. Engine exhausts are notoriously loud, but reduction of this noise source is really quite simple. The engineer can select an exhaust silencer that provides the level of sound attenuation that matches the attenuation level required by the installation.
What is the quietest generator?
For example, Honda’s EU2200i is known for producing just 48-57 decibels of noise, making it one of the quietest generators on the market. Similarly, Yamaha’s EF2000iSv2 produces only 51.5 decibels at quarter load.
How is generator noise regulated in Europe?
In Europe, regulation of generator noise is governed by the 2000/14/EC (Stage II) legislation that has been in place since 2006. For generators with a prime power rating less than 400 kW, the maximum sound power level permitted is calculated using the formula:
What causes generator noise?
Exhaust system noise is another significant source of generator noise and can be mitigated with the use of silencers and proper exhaust routing. Silencers are designed to diminish the sound produced by the generator by absorbing and dampening the noise generated by the engine and exhaust system.
Does genset cooling make a noise?
Cooling noise The noises associated with genset cooling emanate from the radiator fan—whether integral or remote. For the integral radiator, the noise source is closely coupled with the genset, and the radiator fan noise will be mitigated along with the mechanical noise from the generator and engine.


