Rod T. Great video, I learned a lot and want to switch my 62 MGA to an alternator. With over 25 years in high-tech industrial and aircraft power system development, put our know-how to work for your innovative projects. January 8, 2014 @ 8:27 am In a classic generator, the stator windings (statue, stationary – fixed in place) affixed to the inside of the case serve as the field windings. That means the alternator is a nice neat all-in-one package, but it leaves us with a number of wires and the old regulator that need to be dealt with. Having an alternator that operates at low rpm’s really adds to the electrical convenience of my 66 MGB. See streaming videos below of converted car alternators driving a high-capacity water pump and a 2.8 Horsepower (HP) Dynamometer Load. Slide the lawnmower to the side so the belt is tight. Some of us have given up our old generator and moved ahead to an alternator. An automobile alternator needs to run at a speed of at least about 1000 RPM to function at its rated output. An alternator was a logical evolutionary step. Mount the tachometer above the steering column or on the dashboard of your vehicle using the supplied hardware and tools recommended by the manufacturer. Step 5 Drill holes for mounting the lawnmower motor to the plywood with a 1/4-inch bit. The biggest differences are… Alternators usually use internal regulators. This setup helps to simplify the needed calculations for this type of power system. Use sandpaper to smooth the holes. Excellent Tech Video! 1 Although they both make alternating current, AC, they differ in how they convert that current to the direct current, DC, that our cars use DC. The field wire has been removed / taped off and is no longer used. Place this assembly in … 1 decade ago. If we go from an old style alternator to a more modern one, we may be surprised to find some of the early alternators had external voltage regulators like generators did. Just make sure you leave enough gas to actually drive the car if you need it. An automotive alternator converted to a motor is much less expensive than a conventional brushless motor with the same power output. With the advent of more electrical accessories like power windows, the generator could not meet the additional demands and was replaced by the more powerful alternator. The field wire has been removed / taped off and is no longer used. To answer the first part of the question you need to understand how a generator, and an alternator each make electricity. Place the lawnmower motor onto the plywood base again and fit a car alternator belt around the alternator pulley and the motor shaft pulley. An old car alternator can provide one of those ways! For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature. Last month's article dealt with the principles of DC electricity and how your car's battery functions. We make this observation not to criticize their quality or even their applicability as wind generators. The bicycle wheel is linked to the alternator with a belt turning the alternator shaft freely. Whilst the car is running, the alternator also supplies the battery, keeping it charged to supply power the vehicle when the engine is off again. Traditionally we have a pair of brushes that make contact with the bars. An automobile alternator is essentially an AC generator. As you learned in school, when you pass a magnet past a coil of wire, (or you pass a coil of wire past a magnet) you create electricity in the coil of wire. Fundamental: The simplest solution, of course, is to use the car's own existing circuitry to charge the car battery. A Toyota car alternator taken from a junkyard is characterized via an Open-Circuit test to evaluate its operating specifications. Alternator conversion and alternator change. In addition, a car alternator functioning as a motor has more versatile control than a conventional brushless motor, and it can have more power and torque at high speeds than a conventional brushless motor of similar size due to its adjustable field. For all generators and externally regulated alternators, the regulator is a small device mounted somewhere on the firewall or the inner fender of the car. Sep 8, 2019 - how to use a car alternator to make a generator - Google Search http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=45271, July 23, 2015 @ 12:09 pm The windings on the armature spin past the magnetism of the field windings. Fortunately, you can easily test your car’s alternator to see if it's working using a voltmeter, which is an instrument that measures voltage. SIMPLE. Turn your car off, pop the hood, and connect the voltmeter’s positive probe to the positive terminal on the battery and the negative probe to the negative terminal on … car alternator to operate as a low speed generator for wind or hydro power generation. They both make the same kind of electricity. (battery cables from donor car can be used) Run the wiring of the tachometer from the vehicle's interior to the engine compartment. Saved by Glen Stanford. These batteries could then be used to power an inverter, which would produce the AC voltage needed to run the house. David Pethig, found video really good and instructive know how to convert to an alternator now thanks just one thing you said the vehicle had to be neg earth but on the diagram it shows the battery as pos earth is this right or MUST the battery be neg earthed thanks again will try it out on my Ford 100E, December 31, 2013 @ 5:32 pm You can hand crank it. Before you test the alternator, you’ll need to make sure your car’s battery is fully charged. As you might remember, our first generator was built using a horizontal shaft engine. You can do this with a car alternator but it would be more effecient to get a generator that was designed for a wind generator use. You can let an inverter sit for 5 years and it will still work when you turn it on. A Delco car alternator is about the size of a cantaloupe fruit and so there is a limit of how much copper and magnets that can fit inside of it. It needs a small wire that goes to the light on the dash, and it needs a heavier wire that carries the current out of the alternator and to the rest of the car. The inside of the propeller wheel will rotate, and this can be used to turn an alternator's pulley by welding a suitable automotive pulley to the wheel's surface, then driving the alternator with a belt. Alternator Conversion Manual for Download...... Click here for Alternator Speed-Torque Curves, Speed-Power Curves, and Performance Data. We offer a kit to convert your MGA to an alternator. Now we can go on to how that battery gets charged. In fact, generators are seldom used anymore. Making your own bicycle generator is a good addition for those who are interested in going off the grid and finding a way to live on their own terms. Another advantage to this system is that it can easily be … DEMO This calls for additional regular maintenance. stephen heaney. Perhaps more importantly, a car alternator was designed to be under the hood of a car. Trying to generate 5kW from the engine's belt driven alternator is not the right way to approach this. Generators were used in automobiles until around 1970, when alternators became more practical (due to the availability of cheap, small diodes). 736. TWO THINGS. I noticed that the battery in the diagram was positive ground too. I get asked quite often why the car companies switched from generators to alternators, and who did it first. Answer Save. Classic Car Automotive Electrical Systems - Part 2: How Generators and Alternators Work GENERATORS AND ALTERNATORS. Run the belt over the pulleys and make sure that they are taught. Any questions i can try to answer.If your interested in the same set up I am affiliated with Amazon. This is called a Hybrid Brushless Motor since it has a combination of brushless power drive current and a small brushed field current. Alternator conversion and alternator change. Watch the video. Half of the plates are connected to each terminal . Alternative Power Sources Alternative Energy Off The Grid Wind Power Solar Power Energy Projects Power Energy Energy Technology Renewable Energy. Occasionally, a linear alternator or a rotating armature with a stationary magnetic field is used. HOW TO CONVERT FROM GENERATOR TO ALTERNATOR. Before you test the alternator, you’ll need to make sure your car’s battery is fully charged. This field is adjusted by applying a small dc current, typically 0.5A – 4.0A. An alternator converts the mechanical energy provided by a vehicle's engine into electrical energy. The challenge for many of us is how to wire the upgrade. When the battery initially powers the car, the alternator belt, or V-belt, spins the pulley on the alternator, causing the rotor inside the alternator to spin very quickly. It always has fresh gas and starts easily. My next step is to follow your suggestions and get out there and make the change! However, once a load is applied (i.e. In a vehicle, an alternator is used to charge the battery. Two wires isn’t intimidating at all. ie positive (+) earth. The smaller lighter field windings could be put on the armature. Car Alternator to Cheap Motor: Hi,This is my first instructables.Because of my English i put more pictures and less words.In this instructable i will try to explain how to convert car alternator to … Drill a 1/4-inch hole at about 7 1/2 inches from the front end of the steel tube through both sides of the tube. However, consider their usual use case: attached to a car engine that’s probably mostly running around 1000-4000 RPM via a belt that gives about 4x speed multiplier on the alternator. Ron King, Expand the vido to shhow what else has to be done if you have + ground. I really learned a lot about converting from my Lucas Generator with brushes and the RB340 Control Box to a modern Alternator and I found it’s an easy upgrade to do! And alternators are readily available worldwide -- as close as the nearest auto parts store or junk yard. what is their purpose? Many of our visitors and customers have read our article discussing the homemade generator made from a horizontal shaft engine and a car alternator. Photo by Robert D. Copeland The 3-inch washer used to attach the fan and clutch assembly to the alternator. 1 decade ago. 7 Answers. Thus the 12-14V DC output produced by your alternator can … A car is easier to move than a 150 lb generator. 4 1. Using an automotive alternator to construct a wind-powered electrical generator can reduce or eliminate dependency on "grid" power, even if the wind turbine is only used for lighting or recharging batteries. Alternators usually use internal regulators. The link is here Our Alternator Conversion Manual, "How to Convert an Automotive Alternator to a Hybrid Brushless Motor" shows in clear step-by-step instructions with photographs how to do the conversion. We did a little searching around the information superhighway to ferret out the truth behind wind-powered generators made with Delco alternators. Thanks ron, May 28, 2013 @ 5:01 pm 3 Generators use external regulators. Having the current generating windings on the armature means there is a limit to how fast you could spin it without harming it. According the wiring diagram I thought it would be an easy job!! Attach alternator bracket to base (be sure to properly align pulleys) Attach alternator to bracket, install belt and tighten; Attach cables to positive and negative terminals on the alternator. The field windings (stationary) in the generator serve as an electro-magnet. As such, once it begins to produce electricity, it can keep itself moving without any additional work. The alternator is comprised of a voltage regulator and three main components: The stator, rotor, and diode. MKI & MKII) were positive ground; MKIII and onwards were built negative ground. What’s the difference between a generator and an alternator? Drill holes in your fan blades, and use bolts to attach the fan blades to the rotor. A relatively modern alternator only needs two wires to do its job. So, we are left with dealing with wires again. Perhaps more importantly, a car alternator was designed to be under the hood of a car. The design of the generator may need different pulleys on the engine to apply proper shaft speed to the generator head and the alternator, or this may be workable with 1 engine pulley and 1 belt. Because of the difference in the way the electricity is produced, it makes better sense to use a more efficient, and more reliable, alternator and then convert the electricity back to DC. I understand the difference (now:) between the car alternator and the alternator within the inverter generator. The car alternator is also measured to determine its physical dimensions. It is connected with relatively long wires to the generator or alternator. It has internal diodes to convert AC to DC. Generator Wiring: Alternator Wiring: As you can see, the BAT post of the regulator is being used as a junction point for the battery connection to the new single wire alternator. Locate the black wire and hook it up to the battery. When the battery initially powers the car, the alternator belt, or V-belt, spins the pulley on the alternator, causing the rotor inside the alternator to spin very quickly. Even old car generators must spin too fast to be practical for wind power, but there have been many good plans for modifying them. The windings on the armature (the part that rotates) are the current generating windings. What has to be changed? Generators make DC current, and batteries need DC for charging. The alternator also has a pin at the bottem that says "Bat" so im guessing that goes to the negative terminal of the battery. TWO THINGS. Locate the ignition coil. The acquired values are used with the generated Try that with a gasoline or diesel generator. It not only generates electricity but also provides you with a great cardio workout, which could be an alternative to going for a run and a good addition to anyone’s life. This creates electricity in the current generating windings mounted on the armature. March 15, 2013 @ 3:31 pm Classic Car Automotive Electrical Systems - Part 2: How Generators and Alternators Work GENERATORS AND ALTERNATORS. A car alternator changed over to a motor can put out in excess of 1.0 HP -- in many applications far above that, depending on the alternator, how it's converted, and how it's controlled. It always has fresh gas and starts easily. I was wondering if some one… We can deal with two wires. A Car Alternator Can Be Made Into A Powerful Hybrid Brushless Motor In A Couple Hours With Common Tools. I will try to explain those differences without making your head hurt...to much. In a classic generator, the stator windings (statue, stationary – fixed in place) affixed to the inside of the case serve as the field windings. It also explains how to drive the alternator as a motor. Should ( as stated in video) be negative (-) earth, August 21, 2016 @ 12:41 pm 2 The roles of the armature windings and the stator windings are reversed. The electromagnet is more reliable because it is not subject to demagnetization, and it does not have the risk of flying off the rotor at high speeds like rare earth permanent magnets used in BLDC motors. If the power came from an ordinary battery, it would soon run down.So a car has a rechargeable battery and a charging system to keep it topped up. May 28, 2013 @ 5:04 pm Related: How to Build an EMP Emergency Car Bag. Be made into a Powerful Hybrid brushless motor since it has internal diodes to convert your MGA to an?! Produced by your alternator can be made into a high-power brushless motor with clear, easy-to-read.... 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