Cummins generator load by about 80% when Z is appropriate, and the unit can’t long time operation under load is lower than 20% of the time, the reality is in commonly 80% load, low fuel consumption Z, when the load is less than 20%, the impact on the generator set will be, more than the unit fuel consumption will increase, and even might damage the generator set.
There are many generator set users in the purchase of diesel generator set, in order to save money, always put their own electricity load is full. If you have a 100% load of 400KW, you just want to buy a 400KW diesel generator, this idea is not desirable. The generator leader always runs with 100% load, which causes considerable damage to the crankshaft of the cylinder and reduces the service life of the generator set. Some customers consume less electricity, but due to the purchase of diesel generator power is larger, for example, only need 50KW generator set but use more than 300KW generator set, this is not desirable, not only constitutes a waste, fuel consumption increase, cost increase, unit will also constitute damage.
If cummins generator leader is always in low load operation, resulting in water temperature rise less than the normal temperature, oil viscosity, conflict becomes large. The oil in the cylinder that should have been burned was heated to form a paint finish on the cylinder pad. If the low load continues, blue smoke may appear and the surface paint of the cylinder liner should be removed or replaced.
Cummins diesel generator leader always running under low load will appear the following faults:
1. The blue smoke
Piston, cylinder liner seal is not good, oil channeling, into the incineration chamber burning, exhaust smoke blue.
2. Oil running
Turbocharged diesel engine, because of low load, no load, low pressure. The simple result is that the sealing effect of the supercharger oil seal decreases, and the oil climbs into the pressurization chamber, along with the intake into the cylinder.
3. The carbon deposit
Part of the oil flowing into the cylinder to participate in incineration, part of the oil can not be completely burned, in the valve, inlet, piston top, piston ring and other places to form carbon, and part of the exhaust discharge. In this way the cylinder liner exhaust duct will gradually accumulate oil, will also constitute carbon accumulation.
4.Leakage
The supercharger chamber oil accumulation to a certain extent, will leak from the supercharger joint surface.
5. Component wear
Long time low load operation, will lead to more serious wear of moving parts, engine incineration environment deterioration and other results leading to early overhaul period.
Jiangsu Meao Power Technology Co., Ltd. focuses on the development and manufacture of diesel generator sets, and has accumulated rich experience in manufacturing and service in this field. As a professional generator manufacturer, MEAOPOWER attaches great importance to product development, innovation and service quality, and maintains close strategic cooperation with famous domestic and international enterprises such as Cummins, Perkins, Doosan, Yuchai, Weichai, Shangchai, Wuxi Wandi, Lillesomer, Stanford, Marathon and so on.
