How to adjust the problem of inverse power phenomenon of cummins generator set parallel, Jiangsu Meao Power Technology Co., Ltd. made the following answer:
When two generator sets are parallel without load, there will be a frequency difference and voltage difference problem between the two sets. And on the monitoring instruments of the two units (ammeter, power meter and power factor meter), the actual inverse power situation is reflected. One is the inverse power caused by inconsistent speed (frequency) and the other is the inverse power caused by voltage difference. The adjustment is as follows:
1. Frequency caused by the adjustment of inverse power phenomenon: if the frequency of two units are different, the difference is large, on the instrument (ammeter, power meter) shows that the current of the unit with high speed is positive, the power meter indicates positive power, on the contrary, the current indicates negative, the power indicates negative. At this time adjust one of the unit speed (frequency), according to the power meter to adjust the indicator, the power meter can be adjusted to zero. The power indication of the two units is zero, so that the speed (frequency) of the two machines is basically the same. However, when the ammeter is still indicating, this is the voltage difference caused by the inverse work phenomenon.
2. Voltage difference caused by inverse power phenomenon adjustment: when the two sets of power meter indication is zero, and the ammeter still has current indication (i.e., a negative one positive indication), can adjust the voltage adjustment knob of one of the generator sets, adjustment, ammeter and power factor indication. Remove the ammeter indication (that is, adjust to zero), when the ammeter does not indicate, then according to the power factor indicator, adjust the power factor to lag more than 0.5. Generally, it can be adjusted to about 0.8, which is the normal state.
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.
