Main Motor

How do I connect a Garage door motor to the mains? It has 5 wires and A plug only 3!?

I am building a Hog roast and is using the garage door motor to rotate.
I know that the motor has 5 wires for connection and the mains only 3. I have a switch that can operate back neutral and forward but it only has 3 ports for input. How do I do it? please help.

Two of the wires go to a capacitor which the motor will probably require to start. The power is applied to just one side of the capacitor & the motor will rotate in one direction. Apply the power to the other side of the capacitor & it will rotate in the other direction.

However even if you figure out how to wire it, it is not going to work very well for a hog roast. Most garage door opener motors have a thermal overload built into them that will automatically shut the motor off if it gets too hot to prevent fires. Garage door motors normally run for maybe 15 seconds at a time & it doesn’t take long to overheat them on hot days (or next to a hot hog roast). You will be lucky if it would constantly run for more than a few minutes (if that) at a time. In a garage it can take 15-30 minutes for them to cool back down enough to run. Next to a hot roaster it may never cool down enough.

Time to go to Plan B!

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Understanding Electric Motors

nderstanding Electric Motors

The world of electric motors is quite fascinating. For many making and collecting various types of electric motors is a hobby and for others making the best electric motors to power various devices is a profession. Whatever the approach is, but electric motors offer innumerable possibilities for improvisation. Working with electric motors and understanding them is a rewarding and learning experience. Let us find out more about electric motors in general. Usually, electric motors can be classified into two main types. They are direct current or DC and alternating current or AC motors. DC or AC is very common terms and they refer to how the electrical current is transferred through and from the motor. Both types of motors have different utilities and uses.

DC motors are usually available in two general types. Alike that, AC motors also come in two different types. They can be two phase or three phase AC motors. Although on technical front, the differences in DC and AC motors are sometimes marginal, but some of these differences make one types better than the other for a certain use. In general, the DC electric motors work for conditions controlling the speed is essential. It is due to the factor that DC motors have a steady and constant current. DC motors are also the first and earliest motors used. But these good factors are also accompanied with some limitations; for instance, the DC electric motors are incapable of producing power over long period of time. Most of the electric companies are aware of the limitation of the DC motor and have found that the power was lost as the electric current was transmitted. One of the variant, the Brush DC motors, use certain rings that conduct the current and form the magnetic drive that runs the rotor. On the other hand, the brush-less DC electric motors bring forth a switch to generate the magnetic drive that powers the rotor. Direct current motors commonly used in most of the electric appliances in your home.

Now coming back to the AC motors we find that these kinds of motors are commonly used on the basis of their type. For instance, the single phase AC motors are used for general purpose. This type of motors will work efficiently in different conditions. AC motors are effective for systems that are hard to start because they need a lot of power for this purpose. The three phase AC motors, also called polyphase, are commonly found in industrial sector. The AC motors have a high starting power built to transmit lower levels of overall power. As it alternated the power, so it gets its name AC. The amount of power specified by an AC motor is determined by the amount of power needed to operate the system.

Generally, the DC and AC electric motors are easily come across everywhere from the home to the car to industrial uses. The introduction of DC motors is still considered no less than a revolution and when AC motors were available in the market the way motors were looked at changed because of their amazing starting power potential. DC motors and AC motors are different in many ways, but they still both are used to power the world of electric appliances.

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Looking for more information on Electric Motors check out www.electric-motors.org your guide to Electric Motors.