为什么不能带负荷关机、开机？Why can't I shut down and turn on with load?

17. Why can't I shut down and turn on with load?

Answer: Turning off with load is an emergency shutdown that has a significant impact on the unit. Turning on with load is a violation of regulations and can cause damage to both the power generation and electrical equipment

18. What is the so-called three-phase four wire system?

Answer: The generator set has 4 outgoing lines, of which 3 are live wires and 1 is neutral wire. The voltage between the live wires is 380V. The voltage between the live wires and the neutral wire is 220V

19. What is a three-phase short circuit? What consequences will arise?

Answer: A direct short circuit between live wires without any load is a three-phase short circuit. Its consequences are extremely serious and can lead to machine damage and human death

20. What is the so-called reverse power transmission? What are the two serious consequences that will arise?

Answer: The situation where a self provided generator (electric ball) sends electricity to the city grid is called reverse power transmission. There are two serious consequences:

a) If the power supply of the city grid is not cut off, the non synchronous parallel operation between the city grid power supply and the self provided generator power supply will damage the unit. If the capacity of the self provided generator is large, it will also cause oscillation in the city grid

b) The municipal power grid has experienced a power outage and is currently undergoing maintenance. If the self provided generator is used to reverse power, it may cause electric shock and death to maintenance personnel in the power supply department