constant increase in the cost of electricity has led many to wonder about the need to organize their own independent system of power supply.In addition, sometimes the only way to electrical equipment of good quality.Search for solutions to the problem of self-reliance leads to stress the need to understand how to make the generator.Although there are now a lot of revolutionary solutions to produce electricity almost "out of nothing", they do not find practical application, being not always workable, giving way to a time-tested version of the motor.
BACKGROUND generating device
Learn how to make a generator of electricity, should be to recall the basics of electrical science.In the section on engines, clearly indicate that any of them can work not only as a consumer, carrying out conversion work in charge of the mechanical energy of rotation, but in the opposite mode, converting mechanical moment in the potential at the terminals.This feature is called the law of reversibility of electrical machines.Actually, this is the basics of how to make the generator.
Engines
When selecting the motor should be aware that they may be AC or DC.Since seeing is how to make the generator often mean it is "recess", then on "postoyanke" we will not talk.AC machines there are variations in the slip ring and squirrel cage.In the first case, the ends of the coil output to the special device with a set of pads, power supply which is performed using graphite "brushes".Using these solutions as a generator more difficult.
The principle of
To understand how to make the generator, it is necessary to provide the processes occurring in the engine during operation.Consider a three-phase model.When power is applied to the winding of the stator (stationary part) in it, a magnetic field, the lines of tension that cross the closed winding rotor (rotating "drum").Because of this a current is induced in the latter, which generates its own magnetic field.The interaction of these two fields produces torque.That is so simple.
Therefore, on the basis of the law of reversibility, you need an external action to unleash the rotor and stator windings to relieve tension.The generators that are sold in retail chains, torque creates a gasoline engine.Although the efficiency of such a system is not enough, it works.
few nuances
People who have studied how to make the generator, know that there are a number of features connected circuits.Untwist the shaft and connected to the terminal load will not be able to unlock the full potential of the device.The reason for this lies in the fact that in the turns of the rotor winding current occurs (the magnetization is small and fading).To solve this problem, use an effective solution: the conclusions of the three-phase motor considered placing a block of capacitors included triangle.That is, to every corner of the fed wire from the stator, from here depart the three output load.Capacitors should be used electroless type, such as MBGT, MBGO and so on. Their voltage must not be less than 600 V. The capacity also depends on the load (the more powerful it is, the higher the grade capacitors) and engine characteristics.For example, for 2 KVA generator battery capacity is not less than 28 microfarads.
use the generator without load is not recommended because of the arising heat.You also need to take into account that for the three-phase motor, which is removed as a generator 220, the power will be one third of the passport.
shaft speed must not be lower than synchronous.Otherwise, a decrease in the frequency and / or voltage.
most often in people the question: "How to make a wind generator?" Everything is logical: the wind - a free resource that is always available.The composition of this solution include: engine;blades on the shaft, configured by a specific angle;block capacitors.If initially planned to develop a low voltage, it will require an additional inverter battery.
