两台发电机组并机使用的条件是什么？ What are the conditions for using two generator sets in parallel?

8、两台发电机组并机使用的条件是什么？

用什么装置来完成并机工作？答：并机使用的条件是两台机瞬间的电压、频率、相位相同.俗称“三同时”.用专用并机装置来完成并机工作.一般建议采用全自动并机柜.尽量不用手动并机.因为手动并机的成功或失败取决于人为经验.笔者以20多年从事电力工作的经验斗胆放言柴油发电机手动并机的可靠成功率等于0.决不能以市电大电源系统可用手动并机的概念来套用小电源系统因为二者的保护等级完全不一样的.

8. What are the conditions for using two generator sets in parallel?

What device is used to complete parallel work? Answer: The condition for parallel operation is that the instantaneous voltage, frequency, and phase of two machines are the same, commonly known as "three simultaneities". A dedicated parallel device is used to complete the parallel operation. It is generally recommended to use a fully automatic parallel cabinet. Manual parallel operation should not be used as much as possible, because the success or failure of manual parallel operation depends on human experience. Based on more than 20 years of experience in power work, the author boldly states that the reliable success rate of manual parallel operation of diesel generators is equal to 0. The concept of manual parallel operation available in municipal power supply systems cannot be applied to small power supply systems because the protection levels of the two are completely different