When we talk about electric motors, the electric energy generated in the alternator is based on the principle that every conductor when crossed by a magnetic field and since there is relative movement between this magnetic field and the conductor is provoked in him an electromotive force (Faraday’s Law)
If a coil rotates in a magnetic field the changes of flow of the north pole and the south pole happen in the rotation, creating in the coil an electromotive alternating sinusoidal force. The alternator, as depicted at first, to fulfill its role (producing electric energy) needs, among others, the following parts: inductor, induced, excitation and movement.
The inductor is excited by a direct current (DC) source that generates a polarized magnetic field in the inductor winding. This inductor gains in its axis a movement of rotation that makes it to act within the armature. With the rotational movement the magnetic field of the inductor suspends the windings of the armature allowing to generate an alternating electric current with characteristic three-phase, or single-phase, according to the construction of the alternator. The frequency is defined as a function of the number of pole pairs and the angular velocity.
The electric motor should be inspected periodically and adjustments that are necessary should be made so that the electric motor always operates at high levels of performance and performance as regular maintenance only increase the durability of the electric motor.
The electric engine oil should be checked every use, exchanged in the first month or after ten hours of use and replaced every five months or 50 hours of use. The electric engine air filter should be checked every use and cleaned every three months or 25 hours of use. The screws and nuts should be tightened whenever need be.
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Palettes of forced cooling of the electric motor system should be checked every 5 months or 50 hours of use. The spark plug in turn must be cleaned and adjusted every five months or 50 hours of use.
The valves must be cleaned every two years or 200 hours of use, the clutch shoes should be checked every five months or 50 hours of use, the fuel tank should be cleaned once a year or after 100 hours of use and clean fuel only every two years.
Battery installed in the electric bicycle motor must be of the sealed type, as they are free of periodic maintenance
An electric bike not only works with the help of batteries, but are batteries that are responsible for making the electric motor to operate. Still, in addition to the batteries and the electric motor, the electric bike has some components for operation are: electric motor, Battery pack, electronic throttle, electronic controller I also get the name of drive and battery charger that can be 110 or 220 volts.
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For the electric motor to work, it needs batteries. The more batteries used in electric motor are the batteries of lead acid because they are more affordable than Lithium Ion.
The batteries that are placed on the electric motor bicycle is of the sealed type and therefore they need not be subjected to placement of distilled water or any other product.
The voltage of the electric motor battery is always in the region of 12 volts, but who will determine the amount of batteries used in electric bicycle is the electric motor voltage.
The electric motor must be in perfect working order so that it can offer its main function is to make the transformation of electrical energy into mechanical energy, for it is necessary that the responsible for this machine cares for details of maintenance and checks to be made programmatically.
There are several ways to check the electric motor and you can start checking the outside of the engine to have knowledge about how are the pieces, painting and even the dirt present in the engine. This part is important and allows you to find a defect. The second part is to check the motor nameplate.
The check also involves the conference check the bearings. It is very common that different faults in electric motors are derived from bearing failures and so it is important to care about this issue, there are other details that can be part of the check.
The electric motor is designed to operate in environments that present conditions considered normal ABNT NBR 17094 and these ideal conditions are: temperature from 0 to 40 degrees; altitude up to 1000 meters above sea level, and also lack of atmosphere and materials that are dangerous or aggressive.
If some of those considered normal conditions no longer exist, the situation should be analyzed so that the best electric motor is chosen for such a situation.
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To combat water accumulation problem inside the electric motor because it go too long without being operated will need electric heaters are installed inside the electric motor, as well the temperature on the inside of the electric motor will always be higher than the temperature external.
Resistance should come into operation only when the electric motor is off, because then the electric motor will remain heated and free from moisture penetration.
It’s not news to anyone that there are several types of electric motors. The evolution of this machine has enabled the creation of these different types and variations. One of the most widely used is the AC motor, but there are also others that will be presented below.
The two most common types of electric motors are direct current and that the alternating current. Each works in a way and is suitable for specific purposes. While direct current models are more expensive, the AC has a more affordable price, but it is always good to research prices before buying.
This machine is very important and plays a key role. She can make the transformation of electrical energy into mechanical energy, and it can give movement to the process, which is also a very important factor. Efficiency and economy have always been important issues in the use of these machines.
The starting of the electric motor can be classified as direct or indirect, but starting from the protective devices are fuses and thermal relay may be connected in series with each motor phase, as they provide greater security the connection and the use of electric motor when it will hold the activity in which it is intended.
The fuse which is connected to the electric motor MagPowr DFP-2 Dancer/Follower Position is a metal which has a known melting temperature, but is protected inside a radome which can be made of glass or insulating plastics material. When the fuse is too hot, the metal melts and so the passage of electric current is interrupted and thus the electric motor phase is protected.
The thermal relay is sensitive to temperature increase and it deforms if the electric motor becomes heated in excess. The thermal relay can be reused and this makes it very advantageous because it has high durability.
The electric motor design has been developed to provide the best performance at its rated voltage. When operating in the lower nominal voltage, the electric motor is more reduced sharply as the motor torque produced when there is abnormal heating of the windings and this results in energy expenditure.
When voltage is applied above the nominal, it causes the electric motor has its impaired operation and this causes electric motor has increased its losses, mainly iron.
Typically, the electric motor has a voltage range that is great to be operated, but it varies depending on the type of electric motor and also of its power.
The voltage to be applied should be discovered when the electric motor is activated when the machine is operating at full capacity and habituation. Industries that operate at low voltage, if the voltage is far below normal meant that can be caused by excessive drops in the cables that power the electric motor.