Your 2-wire system is actually connected to one "side" of the 3-wire system.
In your utility's 3-wire system you have 2 hot wires that are attached to each end of a tranformer winding and the neutral is attached in the middle and grounded. Typically in the US this gives you 240v (or something similar) between hot leads and 120v from each hot lead to neutral or ground.
If there is no ground wire connect the ground wire to the neutral wire.
What you need to define is the statement "utility- sized electrical generator". It depends on what the generators output is used for as to the way it is internally wired. In some configurations there is no neutral to ground as in a Delta configuration.If the generator is configured for a Wye output and the neutral centre tap is not grounded there will be a floating voltage between the generator and the utility system ground. It is for this reason that the generator's neutral point is grounded to bring the floating voltage down to zero volts to ground.
Some older wire does not have a ground. All you can do in that case is use a jumper wire to connect the ground to the neutral.
Without more information that appears to be a 240 volt circuit. Red & black would connect to the 240 volt breaker, white connects to the neutral bar, and ground conductor from the ground rods or ground plate connects to the neutral bar. Make sure that the bonding screw is in the neutral bar and it is screwed through to bond the distribution panel enclosure to the neutral bar.
It shouldn't. The open end of a non connected neutral should have the same potential as the voltage feeding the circuit. The only time a voltage will show is when the return neutral is tested with a meter to the neutral bar or the ground return bar. It will then show what the supply voltage to the connected load is. Once this neutral is connected to the neutral bar there will be no voltage shown across the test meter between the neutral and the neutral bar or the ground bar.
Black & Red are hot, and White is neutral. If it has no place to connect neutral connect neutral to ground.
If there is no ground wire connect the ground wire to the neutral wire.
A ground bar is used to connect the grounding wires of electrical circuits to the panel's grounding system, while a neutral bar is used to connect the neutral wires of electrical circuits to the panel. The ground bar is for safety, while the neutral bar is for completing the circuit.
What you need to define is the statement "utility- sized electrical generator". It depends on what the generators output is used for as to the way it is internally wired. In some configurations there is no neutral to ground as in a Delta configuration.If the generator is configured for a Wye output and the neutral centre tap is not grounded there will be a floating voltage between the generator and the utility system ground. It is for this reason that the generator's neutral point is grounded to bring the floating voltage down to zero volts to ground.
Some older wire does not have a ground. All you can do in that case is use a jumper wire to connect the ground to the neutral.
To wire a GFCI breaker, first turn off the power to the circuit. Then, connect the hot wire to the breaker's terminal, the neutral wire to the neutral bar, and the ground wire to the ground bar. Finally, turn the power back on and test the GFCI breaker to ensure it is working properly.
To install an AFCI breaker, first turn off the power to the circuit you are working on. Remove the panel cover and locate the breaker slot. Insert the AFCI breaker into the slot and connect the hot wire to the breaker terminal. Connect the neutral wire to the neutral bus bar and the ground wire to the ground bus bar. Secure the breaker in place and replace the panel cover. Turn the power back on and test the AFCI breaker to ensure it is working properly.
To wire a GFCI breaker correctly, first turn off the power to the circuit. Then, connect the hot wire to the breaker's terminal, the neutral wire to the neutral bar, and the ground wire to the ground bar. Finally, turn the power back on and test the GFCI breaker to ensure it is working properly.
Connecting neutral to ground in an electrical circuit can create a dangerous situation called a ground fault. This can lead to electrical shock, fires, and damage to appliances or equipment. It is important to keep neutral and ground separate to ensure the safety and proper functioning of the electrical system.
If you are connecting 120 volts, you connect the black wire to the breaker, white wire to the neutral bar, and ground wire to the ground bar. If you are connecting 240 volts connect the black & white wires to the breaker, & ground wire to the ground bar.
To wire an arc fault breaker correctly, follow these steps: Turn off the power to the circuit you are working on. Remove the panel cover to access the breaker box. Identify the circuit where the arc fault breaker will be installed. Connect the hot wire to the breaker terminal and the neutral wire to the neutral bus bar. Connect the ground wire to the ground bus bar. Secure the breaker in place and replace the panel cover. Turn the power back on and test the breaker to ensure it is working properly.
If you are working with a sub panel, there are a few reasons to isolate the neutral. Firstly, currents will then return to the main panel and service ground.