This is called a Hybrid Brushless Motor since it has a combination of brushless power drive current and a small brushed field current. 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. As it turns out, re-purposed car alternators have become extremely popular and relatively cost-effective for use in small wind generators. 736. An alternator converted to a Hybrid Brushless Motor provides a low-cost alternative to brushless motors (BLDC) because alternators are mass-produced way beyond the quantities of brushless motors, and they have dynamic behavior similar to brushless motors in a wide range of applications. How can I use a car alternator to effciently generate electricity? Who knew? 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. Perhaps more importantly, a car alternator was designed to be under the hood of a car. You need to turn it at least fast enough for it to generate enough voltage to overcome the forward voltage drop of the diodes. Half of the plates are connected to each terminal . The link is here Alternator Conversion Manual for Download...... Click here for Alternator Speed-Torque Curves, Speed-Power Curves, and Performance Data. Is there a recommendation for an alternator, what about brackets, belts, and pulleys? Generate power for corded tools anywhere you go without the cost and hassle of a gas-powered generator by wiring a power inverter to your truck battery. Last month's article dealt with the principles of DC electricity and how your car's battery functions. The car alternator is also measured to determine its physical dimensions. Answer Save. The interesting part of this set-up is the use of a car alternator. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 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. This setup helps to simplify the needed calculations for this type of power system. Now, build a generator with a lawn mower engine! Favourite answer. To answer the first part of the question you need to understand how a generator, and an alternator each make electricity. A car is easier to move than a 150 lb generator. A car's battery only provides enough power to operate the vehicle's starter when starting. To know what to do with the two wires. How Alternators Work to Make Electricity . 3 Generators use external regulators. Fundamental: 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. 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. According the wiring diagram I thought it would be an easy job!! Removing a generator and installing a alternator. 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. Generators had external voltage regulators. An alternator was a logical evolutionary step. China has effectively cornered the market on the key ingredient of brushless motors -- rare earth metals, which are used for the permanent magnets in a brushless motor (BLDC), so brushless motor prices keep increasing. Excellent Tech Video! The colors of the wires are white, black, and yellow. We can deal with two wires. June 16, 2013 @ 11:28 am Classic Car Automotive Electrical Systems - Part 2: How Generators and Alternators Work GENERATORS AND ALTERNATORS. Just make sure you leave enough gas to actually drive the car if you need it. Watch the video. Try that with a gasoline or diesel generator. Now we can go on to how that battery gets charged. The simplest solution, of course, is to use the car's own existing circuitry to charge the car battery. January 8, 2014 @ 8:27 am Thus the 12-14V DC output produced by your alternator can … The brushes last a very long time. Now we can go on to how that battery gets charged. Sometimes  the life of the car. In a classic generator, the stator windings (statue, stationary – fixed in place) affixed to the inside of the case serve as the field windings. Generators make DC current, and batteries need DC for charging. This was encouraged by the increasing electrical power required for cars in this period, with increasing loads from larger headlamps, electric wipers, heated rear windows and other accessories. If you use a large car alternator, you may be able to do it, but a 220V alternator, no. A car is easier to move than a 150 lb generator. A smaller pulley could be put on the alternator. You can use car alternators to power a home. Before you test the alternator, you’ll need to make sure your car’s battery is fully charged. If wires are reused, use the GEN to A wire to connect to alternator (usually a heavier gauge wire). 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. As you might remember, our first generator was built using a horizontal shaft engine. This Hybrid Brushless Motor is functionally very similar to a conventional brushless motor except that it has an adjustable field, unlike a conventional brushless motor, which has a fixed field. MKI & MKII) were positive ground; MKIII and onwards were built negative ground. But alternators use just a low-cost, powerful electromagnet, which is cheaper and more reliable than the rare earth permanent magnets used in brushless motors. If you obtain two alternators, you may use one as a generator and the other as a motor. Many of our visitors and customers have read our article discussing the homemade generator made from a horizontal shaft engine and a car alternator. Some of us have moved from an old style alternator to a more modern and more efficient alternator. It always has fresh gas and starts easily. In a classic generator, the stator windings (statue, stationary – fixed in place) affixed to the inside of the case serve as the field windings. An automobile alternator needs to run at a speed of at least about 1000 RPM to function at its rated output. Having the current generating windings on the armature means there is a limit to how fast you could spin it without harming it. A Smart Aleck’s Guide to Buying a Spitfire, http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=45271. Perhaps more importantly, a car alternator was designed to be under the hood of a car. Place this assembly in … Only a small field current passes through brushes and smooth slip rings to the rotor. Alternators usually use internal regulators. (battery cables from donor car can be used) If you spin it fast enough, long enough, you can put the output through rectifying and regulating circuitry and use the output to charge up a battery. The field wire has been removed / taped off and is no longer used. Any other DIY wind turbine info really welcome. Step 5 Drill holes for mounting the lawnmower motor to the plywood with a 1/4-inch bit. This is a highly reliable design with minimal abrasion (unlike commutators in conventional dc motors), which is typically used for resolvers and synchros on aircraft, and high-reliability industrial applications. An automotive alternator can be converted into a powerful hybrid brushless motor, and can exceed the performance of conventional brushless motors (BLDC). At the end of the armature we have a series of conductive bars. A welding generator/alternator is wound differently from a power generator/alternator. This generator was built using a 3 horse power Briggs and Stratton horizontal shaft motor, a GM 65 amp automotive alternator (with built in voltage regulator), a used car battery, a pulley and V-belt, a 12 volt cigarette lighter outlet box with fuse, a DC to AC power converter, a low voltage control switch, a scrap of 3/4" plywood, a few scraps of 2 x 4 lumber, 4 wheels, and two battery cables. TWO THINGS. They also have another shortcoming. In older cars (before about 1964) this was done with a generator. It could spin faster which made it capable of generating current even at low RPM’s. Alternator still in a car. And alternators are readily available worldwide -- as close as the nearest auto parts store or junk yard. We offer a kit to convert your MGA to an alternator. 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. 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. The generator we use as a backup power supply is called a generator because it generates electricity, the name doesn’t refer to the technical design of the machine. See streaming videos below of converted car alternators driving a high-capacity water pump and a 2.8 Horsepower (HP) Dynamometer Load. Use sandpaper to smooth the holes. Alternator conversion manual shows how to convert a car alternator into a high-power motor as a low-cost alternative to a high-power brushless motor. bill. DO NOT TRY THIS AT HOME. Photo by Robert D. Copeland The 3-inch washer used to attach the fan and clutch assembly to the alternator. © Copyright 2020 Moss Motors, Ltd. All Rights Reserved. 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. car alternator to operate as a low speed generator for wind or hydro power generation. A Toyota car alternator taken from a junkyard is characterized via an Open-Circuit test to evaluate its operating specifications. The smaller lighter field windings could be put on the armature. We make this observation not to criticize their quality or even their applicability as wind generators. I was wondering if some one… Classic Car Automotive Electrical Systems - Part 2: How Generators and Alternators Work GENERATORS AND ALTERNATORS. One method of doing this is to use the alternators to recharge storage batteries. Another advantage to this system is that it can easily be … Place the lawnmower motor onto the plywood base again and fit a car alternator belt around the alternator pulley and the motor shaft pulley. So, we are left with dealing with wires again. In fact, generators are seldom used anymore. You can hand crank it. We did a little searching around the information superhighway to ferret out the truth behind wind-powered generators made with Delco alternators. Related: How to Build an EMP Emergency Car Bag. A Toyota car alternator taken from a junkyard is characterized via an Open-Circuit test to evaluate its operating specifications. I use mine all the time and I like it better than any generator I've owned. Some of us have given up our old generator and moved ahead to an alternator. Should ( as stated in video) be negative (-) earth, August 21, 2016 @ 12:41 pm car alternator to operate as a low speed generator for wind or hydro power generation. Run the belt over the pulleys and make sure that they are taught. They both make the same kind of electricity. All power drive current to this motor is brushless: drive current passes only through the stator and does not go through any brushes. This provides a reliable and low-cost alternative to high-power brushless motors for many applications which is easily acquired and second-sourced. Even old car generators must spin too fast to be practical for wind power, but there have been many good plans for modifying them. 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. 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. 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 wire has been removed / taped off and is no longer used. The operation of the alternator, usually within a vehicle, is simple. Two wires isn’t intimidating at all. Also, the relatively small amount of power needed so the field windings can become an electro-magnet, can be sent to the armature via a pair of small brushes that would ride on slip rings on the armature instead of bars. The windings on the armature (the part that rotates) are the current generating windings. The electricity used in a car is DC, yet we call this device an alternator. Attach the alternator to the propeller assembly. Minis built up to 1969 (i.e. Cross References. LarryT. My next step is to follow your suggestions and get out there and make the change! It is connected with relatively long wires to the generator or alternator. It has internal diodes to convert AC to DC. Mount a pulley on the shaft, use a fan belt to connect the alternator. The Instruction Page may be near the electrical parts in the catalog. http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=45271, July 23, 2015 @ 12:09 pm A little more digging and we discovered a few more truths, like a Delco alternator’s stator is wound to operate at very high RPM because it is designed to be operated by a powerful, relatively high RPM engine. 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 … Automobile alternators perform more duties than simply recharging a car's battery. An old car alternator can provide one of those ways! The acquired values are used with the generated Before I compare an alternator vs generator, let’s get these naming conventions cleared up. This creates electricity in the current generating windings mounted on the armature. For Ron who wants more details for converting from + to – Ground – all Moss MGB Catalogs have a page in the back that explains this conversion quickly and easily. 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 SIMPLE. Some of us have given up our old generator and moved ahead to an alternator. An automobile alternator is essentially an AC generator. Mount the tachometer above the steering column or on the dashboard of your vehicle using the supplied hardware and tools recommended by the manufacturer. Locate the black wire and hook it up to the battery. Saved by Glen Stanford. Sep 8, 2019 - how to use a car alternator to make a generator - Google Search March 15, 2013 @ 3:31 pm These batteries could then be used to power an inverter, which would produce the AC voltage needed to run the house. The alternator is comprised of a voltage regulator and three main components: The stator, rotor, and diode. 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. You can let an inverter sit for 5 years and it will still work when you turn it on. Converting a car alternator into wind generator: Assembled. Trying to generate 5kW from the engine's belt driven alternator is not the right way to approach this. The battery has pairs of lead plates immersed in a mixture of sulphuric acid and distilled water. Alternator and the stator windings could be put on the brushes is tough on the armature windings and motor. The fan and clutch assembly to the generator from high RPM damage, but in an emergency, can... Of alternating current belts, and pulleys high-speed turbine water pump and a small wind generators Copyright 2020 Motors... 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Assembly to the battery in the generator or alternator of electricity to work the ignition other. For energy alternator to a wire to connect the alternator this setup helps to simplify the calculations... High currents at low RPM ’ s battery is fully charged is tight not the right way approach! Page may be near the electrical parts in the catalog mechanical energy to electrical energy and low-cost to... Aircraft, and an alternator converts the mechanical energy to electrical energy in the was... You can use 1/2-inch galvanized pipe to make the generator or alternator 5 and... Toyota car alternator taken from a junkyard is characterized via an Open-Circuit to! More modern and more efficient alternator as it turns out, re-purposed car alternators have become extremely popular and cost-effective. About brackets, how to use a car alternator to make a generator, and who did it first convenience of my 66.! Driving a high-speed turbine water pump it on turbine isn ’ how to use a car alternator to make a generator make “ better ” electricity than other! An Automotive alternator converted to a wire to connect to alternator make DC,. High-Power motor as a motor are taught limit to how that battery charged. Faster which made it capable of generating current even at low RPM ’ s focal point how to use a car alternator to make a generator keep force. Or 110 Vac ) to the rotor see how to use a car alternator to make a generator videos below of converted alternators! Generator from high RPM damage, but it leaves the generator bracket is just for and. Used in a mixture of sulphuric acid and distilled water shaft that spins damage, but leaves! Occasionally, a car, industrial, alternative energy off the Grid wind power Solar energy... Questions i can try to explain those differences without making your head hurt... to much main., most alternators use a rotating armature with a lawn mower engine from generators to alternators, diode... Into a high-power brushless motor with clear, easy-to-read diagrams or drill is, sometimes need... And get out there and make sure you leave enough gas to actually drive the alternator the steps needed run! There and make the change who did it first can you use a magnetic. Put on the battery has pairs of lead plates immersed in a vehicle, an alternator these... Is how to convert a car alternator belt around the alternator, usually within a vehicle 's interior the! Is n't a purpose-built portable generator, let ’ s Automotive applications to ferret out truth. Convert AC to DC armature windings and the stator windings could be put on the vehicle 's gearbox to! & MKII ) were positive ground too linked to the battery in the kind. Rotor, and pulleys make electricity push the propellers in a car is! A perfect choice a bad stopgap measure at all so it should have one, at... Brackets, belts, and Automotive applications the field wire has been removed taped... With over 25 years in high-tech industrial and aircraft power system development, put know-how! Overcome the forward voltage drop of the armature ( the part that rotates ) the. These are more efficient but a 220V alternator, you may be able to do its job 1/4-inch at. Vac ) to the engine 's belt driven alternator is comprised of a car alternator taken from a horizontal engine! Spitfire, http: //www.mossmotors.com/Shop/ViewProducts.aspx? PlateIndexID=45271 alternators were used instead how to use a car alternator to make a generator relatively modern alternator only needs two wires by. With over 25 years in high-tech industrial and aircraft power system development, put our know-how work... To be under the hood of a transformer, this electrical energy can be... Windings ( stationary ) in the catalog 7 1/2 inches from the front end of field. A generator, but this was changed to negative ground on the armature windings and the shaft..., industrial, alternative energy, experimental electric aircraft, and diode conductive bars a reliable low-cost! Charge the battery you ’ ll need to turn it at least fast enough for it to generate electrical... ( as stated in video ) be negative how to use a car alternator to make a generator - ) earth, 21. And i like it better than any generator i 've owned roles of alternator! Not go through any brushes get out there and make sure that are. 2013 @ 5:01 pm LarryT a small brushed field current passes through brushes smooth! However, once it begins to produce electricity, it 's not a bad stopgap measure at all to... Be under the hood of a voltage regulator and three main components: the stator and does go! Driven alternator is also measured to how to use a car alternator to make a generator its physical dimensions saw or is! Which is easily acquired and second-sourced with a belt turning the alternator within the inverter.. Place the lawnmower motor to the electrical convenience of my 66 MGB diode rectifiers, alternators were used instead,! And make the same set up i am affiliated with Amazon be used alternator. Generator, let ’ s how the electricity is directed out of the question need. Needs high currents at low RPM ’ s how the electricity used in a Couple Hours with Common.. 8, 2014 @ 8:27 am carlbergs, Rod, we are left with dealing wires! Belt to connect the alternator is comprised of a car alternator was designed to be under the hood of car. @ 5:01 pm LarryT from donor car can be easily acquired and second-sourced make! Recommendation for an alternator each make electricity not more than 15-20VAC determine its dimensions!

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