Hello:
——★1.We know that the neutral line is connected to ground (the neutral point of the power system transformer is grounded ), and the live wire has a voltage of 220 V.
——★2.The domestic generator produces two wires A and B, and the rated voltage between them two wire is 220 V. Since the output wire (A or B) of a home generator is not connected to ground, there is no distinction between live and neutral wires.
——★3. If you connect one wire (A or B) coming out of the generator to ground, then that wire is called the neutral wire, and the other wire is called the neutral wire. One wire is the live wire, which has a voltage of 220 V to ground.
——★4. For the neutral point grounding device of the transformer, the electrical safety rules are strictly stipulated: the grounding resistance is not greater than 4 Ω,and general domestic installation meets the requirements. It is very difficult and completely unnecessary to ground the grounding post, which is why home generators do not have a neutral line.
If the live wire and neutral wire of the generator output are connected in reverse, it is equivalent to short-circuiting the generator armature winding, which results in a significant current. Components that may be damaged are:
1. Automatic voltage regulator (AVR). Try upgrading to a new AVR;
2. The generator loses its magnetism. Use a battery to magnetize the field winding.