The generator emits three-phase alternating current with a frequency of 50 Hz, which means that the direction of the current changes 50 times per second. So there are no positive and negative electrodes in alternating current, so the plug can be plugged in. front and rear. Why the neutral wire There is no electricity, it is because the live wire is connected from the first end of the generator and the neutral wire is connected from the rear end from the three phase ends of the generator. are connected together, the sum of the three-phase vectors is 0, i.e. The three phases are symmetrical, so the neutral line is not loaded. If the load is asymmetrical, then the neutral line is loaded. She can't be touched. , otherwise there will be a risk of electric shock.
Can household appliances use 220V mains voltage? That is, 2 and live wire, but no neutral wire. The voltage isalways 220V.
Since the battery voltage is low, it basically poses no risk of electric shock to people (DC 6~24V) and is not grounded. It is specially grounded (body) to the housing. car, commonly known as grounding, but due to the voltage, the reason for the low price is limited to the range of this car.
The electricity you use at home is 220 V AC, which is a very high voltage. The 220V AC power we use comes from a generator. The generator can output 220V and 380V AC power depending on the connection method. The neutral point of the generator is fully grounded. You can also think of the neutral wire and the ground wire as one wire. Your home's electrical distribution is typically: a phase wire (commonly called a live wire), a ground wire, and a ground wire. a systemme neutral with three wires.
Home appliances generally have their shell grounded. In order to prevent the hull from being electrified due to damage to electrical equipment, if the hull leaks, the main fuse will blow, thereby cutting off the power supply to avoid further danger and playing a protective role (this i.e. only a single charge, no continuous power) people).
There are strict requirements regarding the grounding of buildings. Because the ground is an insulator! The grounding piece is usually buried to a certain depth and is connected to the groundwater layer as much as possible, and the grounding point is treated with salt. So it is basically considered to be connected to the neutral line of 220 V AC.
The question raised by others is correct. People who scold the mentally retarded are ignorant. Both wires live, he said, sont often 220 V. For example, in a small generator you buy, both wires are live wires and the voltage is 220 V. At present, they are different from live wires and neutral wires provided by the. power supply office, so they are called current wires. The live wire is 220 V, and some small three-phase generators also have 220 V between the two live wires.
If the two live wires generated by the generator are 220 V, be careful when using them. Some household appliances cannot be powered and may burn the appliances. For example, if the frequency is wrong, some devices will not work.