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Quick answer is that 220v does not use or need a neutral. The original concept of the neutral (going back to Edison and DC power) was cutting the power in half (not really accurate but one way to look at it). Think about two 110v batteries in series the neutral would come off the connection between the two batteries. so current flow would go from +110 to -110 (first battery) to +110 to -110 (second battery) resulting in 220 output. The connection between the batteries (the neutral) is +110 / -110 resulting in 0. If you want a 110 current instead of using the full flow you could instead use only 'one side' and the neutral and get the 110. When we made the move from DC to AC the basics of this format was kept. So for 110v you need hot and neutral (and a ground) for 220v you need two hots (no neutral) and a ground.
HUGE CATCH - WARNING - WARNING!!!
Just because you think your equipment is 220v doesn't mean everything it does it does requires 220v for example: some equipment uses 220v for the motor and 110v for the rest of its electrical needs (Dryers are a typical example). In the old days, the dryer would use the two hots (and ground for safety) for 220v and then use one hot and ground (no 'safety' ground) for 110v. However, people often got shocked because this unsafe method would often cause the entire metal chassis to take on a charge. So todays dryers (and any other machine that has both 220v and 110v components) have and are required to have 2 hots ground and neutral. However, the documentation isn't always specific about the '110v need' and a lot of 220v only equipment will still have 4 wire connections even though the neutral is not needed.
If you are sure your equipment never utilizes 110v - then you don't need a neutral (a single motor, no thrills (control panel, laser guides, etc), 220v table saw would be fine with out a neutral (one with the thrills may be fine also - depends on the power requirement of the 'thrills'). I don't know about your generator is depends if it is strictly 220v.
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How would you make a patch cord to go from a 220V 30-amp 4-wire generator to run a 220V 20-amp 3-wire portable compressor?
Identify the neutral wire on the generator. This will be the unused conductor to run the compressor. The ground and line1, line 2 are all that are needed.
When does a motor not need a neutral wire?
If the motor is operated from a three phase three wire distribution system the motor will not need a neutral wire.
On a 220 volt circuit where the white wire is common how many volts would the red wire be?
3 OR 4 . you only need 2 wires for 220, 1 phase is 120v between 2 of them its 220v . you also should have a ground for the third wire ,and the newer stuff requires a neutral or white wire for the 4th wire. hope i helped , D
How do you wire a three prong twist lock receptacle to a 4 prong male connector in 220V?
Buy a new receptacle that your plug fits in. You probably need one with a neutral so look for 125/240v.
Do you need a neutral wire for a light to work?
The neutral wire is the return wire back to the distribution panel from the load. Without this return wire no load will work.
How would you make a patch cord to go from a 220V 30-amp 4-wire generator to run a 220V 20-amp 3-wire portable compressor?
Identify the neutral wire on the generator. This will be the unused conductor to run the compressor. The ground and line1, line 2 are all that are needed.
Is the neutral wire on a 220v outlet the same as the ground?
No it is not
How do you wire a 220v three prong to a 220v four prong?
You'll need to contact an electrician who will pull a new wire for you. If you only have 2 wires on the 240 line, you don't have a neutral or a ground; both of which are essential for a modern electric range.
Electric range 220 or 110?
Electrical range is usually 220V and requires at least a 40A breaker. In a three wire configuration, the white power carries 110V, the black wire carries 220V and the green wire is the ground. A four wire configuration has an additional wire that is neutral.
How do you wire 240V straight blade outlet when both screws are brass?
Both screws are brass because in the US you need two hots to get 220V. In a 220V only circuit you do not connect the neutral, only two hots and a ground. This is why 220V breakers are twice as wide as 110V and have two terminals instead of one.
How do you wire 220V with 2 black 1 white wire?
Your black wires are your hot wires. The white is your neutral or common. It would be best to run an equipment ground (green wire) too.
When does a motor not need a neutral wire?
If the motor is operated from a three phase three wire distribution system the motor will not need a neutral wire.
How do you avoid floating neutral?
The neutral of a generator should never get into a condition where is is floating. All generators have the neutral tied to the frame of the generator set. It comes this way from the manufacturer. If it is floating then someone has disconnected the neutral wire from the frame. Just reconnect the neutral to the generator frame again to stop it from floating. Larger generators should also have a ground rod connected to the generator frame for grounding purposes.
On a 220 volt circuit where the white wire is common how many volts would the red wire be?
3 OR 4 . you only need 2 wires for 220, 1 phase is 120v between 2 of them its 220v . you also should have a ground for the third wire ,and the newer stuff requires a neutral or white wire for the 4th wire. hope i helped , D
How do you wire a three prong twist lock receptacle to a 4 prong male connector in 220V?
Buy a new receptacle that your plug fits in. You probably need one with a neutral so look for 125/240v.
Can you use the ground conductor in a 14 AWG 2 conductor with a ground for the neutral in a 220V 15 amp circuit with less than 50ft run?
yes <<>> No, the ground wire is never to be used as a neutral. In this case if you need a 120 volt circuit from the 220 volt circuit a three wire cable (3C #14) must be installed.
Do you need a neutral wire for a light to work?
The neutral wire is the return wire back to the distribution panel from the load. Without this return wire no load will work.
