The reasons are analyzed as follows:
The neutral line is the line drawn from the neutral point on the secondary side of the transformer. It forms a loop with the phase line to provide power. to electrical equipment. Normally, the neutral line is at The neutral point on the secondary side of the transformer is repeatedly grounded with the ground wire to provide double protection.
The live wire is the power wire that transmits electricity in the circuit. It is usually live and the voltage between the live wire and ground is 220V.
Hello:
——★1. In the generator power line, there is distributed capacitance between the three-phase power lines and ground, so the "Neutral line is loaded" during testing.
——★2. Another situation is: the phase wire in the power line (from the generator) is grounded, so the ground wire is charge in relation to earth (phase wire).
——★3. Please check the circuit insulation. If there is a charged distributed capacitance between the power line and ground, it can be ignored. After all, no one will “touch” the neutral line of the lighting circuit.
——★4. When the generator supplies power, the lighting circuit should be completely disconnected from the transformer power circuit (including live wire and neutral wire) and become a separate system.