The whole process of generator set putting into parallel operation is called parallel. One set of generator set runs, the voltage sent to the busbar. After the start of another generator set, it parallels with the first genset, in the closing moments, the generator sets should not cause a harmful impact current, and the shaft has not be subject to sudden impact. After closing, the rotor should be able to be quickly pulled into synchronization. (the rotor speed is equal to the rated speed)
So the following preconditions of parallel operation of generator sets must be met: 1) voltage RMS and waveform of the generator set must be the same; 2) voltage phase of two generator sets must be the same; 3) frequency of two generator set must be the same; 4) the phase sequence of two generator sets is the same.
Hantech Power is a diesel generator set manufacturer in China, mainly deal in Cummins, Deutz, Weichai, Yuchai, HND series. Special use genset can also supplied, including silent type, container type, parallel operation and mobile trailer type.