Please for your sake and the sake of others learn the difference
between "ground" and "neutral".
For simplicity look at it hs way. Neutral is normally a current
carrying conductor. Ground is like the safety chains when pulling a
trailer. Rarely used but there in case things go wrong. And if things
do go round find out why, correct the condition and start again.

The neutral is connected to the ground system at one point. This is a
safety measue to keep the system from floating more than the potential
of the line voltages. In this case 110 and 220. Single point connection
also minimizes ground loops to just one which are killers for
electronic equipment.
Bob AZ