Line Neutral. The line neutral is the central output line of the generator, and it cannot be connected to the E terminal of a 60Hz frequency converter power supply as a ground wire, regardless of whether it is at zero potential at the client end; aviation power supply.
(2) The N terminal of a 60Hz variable frequency power supply. The N terminal of a 60Hz variable frequency power supply is the negative terminal of the power supply's DC bus. It should not be used as a grounding terminal, nor should it be incorrectly connected to the power supply neutral wire.
(3) Security Ground. The E grounding wire of the 60Hz variable frequency power supply should be connected to the security ground, which is the motor's housing. This prevents high-voltage surge impacts and noise interference. 400Hz power supply
