What are the conditions for the parallel operation of the two generators? What devices are used to complete the parallel operation?
The condition of parallel operation is that the instantaneous voltage, frequency and phase of two units are the same. It is commonly known as “three Simultaneities”. The special parallel device is used to complete the parallel operation. It is generally recommended to adopt fully automatic parallel cabinet. Try not to merge the machines manually. Because the success or failure of manual merging depends on human experience. The reliable success rate of diesel generator manual parallel operation is low. We must not use the concept of manual parallel operation for the large power supply system of commercial power station to apply the small power supply system, because the protection level of the two systems is completely different
Post time: Apr-20-2021