The so-called single-phase gasoline generator refers to a single-phase live wire (and of course a single-phase neutral wire). The voltage between the live wire and the neutral wire is 220V. Gasoline generator refers to the three-phase live wire, between adjacent live wires. The voltage is 380V. There is no neutral line.
Therefore, only when the three-phase load is the same (for example, a three-phase motor), the three-phase power can be applied At this time, the current vector sum of the three-phase power is 0 (the three-phase electricity is at an angle of 120 degrees to each other, so the sum is 0) At present, it there is no need for a neutral line (equivalent to the neutral line). The three-phase gasoline generator is mainly used as a power source for the electric motor, that is, the load it needs. to rotate.
Since the phase differences ofthree-phase electricity are all 120 degrees, the rotor will not get stuck. Imagine: one pedal of the bike is parked at the bottom and the other is parked at the bottom. at the highest position, it is the person walking on the bike. If the force of the foot is downward, it can be "blocked" (when the direction of the force of the foot is consistent with the line connecting the two pedals), or it can be "blocked" (when the direction of the force of the foot is consistent with the line connecting the two pedals). turn back. It is not necessarily guaranteed to turn forward first. You have to use your foot to change the angle of the pedal a little. The purpose of three-phase electricity is to form this "angle". for people to produce such complicated three-phase electricity.
Let's first talk about two situations in which the human body receives an electric shock when using mains electricity: 1. The human body touches a wire and receives an electric shock without pwear insulated shoes. 2. The human body receives an electric shock when it comes into contact with two wires at the same time. In the first case, the human body receives an electric shock because the neutral wire of the generator of the power plant is grounded. If the human body does not wear insulated shoes and touches a wire (live wire), current will flow through the human body. to the ground and creates a loop with the power plant's ground wire, causing people to be electrocuted.
Now let's talk about gasoline generators, gasoline generators do not have a ground wire, so if the human body touches a wire without wearing insulating shoes, the body human will not receive electric current. shock. However, a gasoline generator will also receive an electric shock if the human body comes into contact with two wires at the same time.