The 50 amp receptical will not be a three prong receptacle it will be a 3-pole 4-wire grounding receptacle. It will be a 125/250 volt rating NEMA number 14–50R. The red and black wires connect to the X and Y terminals, the white wire to the W terminal and the ground wire to the G terminal.
The equipment grounding conductor is attached to the rounded prong in a three prong plug. Electrical work is dangerous, call a qualified electrician to install. Improper wiring could lead to personal property damage, you or someone else being injured or killed!
The 3rd round plug is the ground connection.
Basically, Your ground prong is essential to protecting you from being in contact with an "unsuspecting Live current flow." It eliminates YOU as the primary grounding to whatever your plug is supplying power to, and sends any current flow, manually drawn (like touching it), into the ground prong. Your feet touching the earth acts as a "grounding" process, but with a ground prong; itself alone acts as the ground for you, allowing you to escape the ability to receive external power.
To correctly wire a three-blade 220-volt plug, you should connect the hot wires (usually black and red) to the brass-colored screws, the neutral wire (usually white) to the silver-colored screw, and the ground wire (usually green or bare copper) to the green screw. Always make sure to follow the specific instructions provided by the plug's manufacturer and to disconnect power before working on any electrical connections.
My question is WHY did you replace a four prong dryer plug with a three prong! 220 volt Electric dryers require two hot legs, a neutral and a system ground wire. Sounds as though you shunted one of the hots or the neutral. You need to install a four prong plug of the same configuration and wire it exactly as the original.
What you term as a four wire cable is known as a three wire cable in the electrical trade. The ground wire is not counted in the cable set as it is not a current carrying conductor. Turn the power off to the circuit in question. Remove the three prong outlet from the junction box. If you see a red, black, white and bare ground then you have a three wire cable feeding the receptacle. If this is what you see and the purpose of this question is to see if it can be changed to utilize a new four blade recepticle then the answer is yes.
The equipment grounding conductor is attached to the rounded prong in a three prong plug. Electrical work is dangerous, call a qualified electrician to install. Improper wiring could lead to personal property damage, you or someone else being injured or killed!
Is it a plastic prong sealed together
The green wire is for ground. You can attach that to any metal part of the frame. The red is the active and coincides with the lefthand prong into the plug and the black in this case should be the Neutral and ciocides with the right prong into the plug as seen standing behind the plug.
Sure i do
Black wire to the gold screw, white wire to the silver screw, green wire to the round or U shaped prong screw.
The 3rd round plug is the ground connection.
The main difference between a two-prong and a three-prong extension cord is the presence of a grounding prong in the three-prong cord. This grounding prong provides an extra level of safety by redirecting excess electricity away from the user in case of a short circuit or electrical fault. The grounding prong also helps prevent electrical shocks and fires. In contrast, a two-prong extension cord lacks this grounding feature, making it less safe for use with certain appliances and in certain environments.
To replace a two-prong outlet with a three-prong outlet, you will need to turn off the power to the outlet, remove the old outlet, install a new three-prong outlet, and connect the wires properly. It is important to ensure that the outlet is grounded for safety. If you are not comfortable with electrical work, it is recommended to hire a licensed electrician to do the job.
To safely convert a dryer from a four-prong to a three-prong plug, you will need to replace the cord with a three-prong cord that matches the outlet in your home. Make sure to follow the manufacturer's instructions and turn off the power before making any changes. If you are unsure, it is recommended to consult a professional electrician for assistance.
Basically, Your ground prong is essential to protecting you from being in contact with an "unsuspecting Live current flow." It eliminates YOU as the primary grounding to whatever your plug is supplying power to, and sends any current flow, manually drawn (like touching it), into the ground prong. Your feet touching the earth acts as a "grounding" process, but with a ground prong; itself alone acts as the ground for you, allowing you to escape the ability to receive external power.
There is not enough information stated as to what you are trying to do.