Motors | How to Choose an Electric Motor

How to Choose an Electric Motor electric motor converts electrical energy into mechanical energy. This is achieved by the principle of electromagnetic induction. Electromagnetic induction is the principle that a current carrying conductor, when placed in a magnetic field will have a force exerted on the conductor proportional to the current flowing and the strength of the magnetic field. The basic principles of electromagnetic induction were discovered in the early 1800's by Oersted, Gauss and Faraday. However, it was Tesla who was able to take motor technology to the next level in the late 1800's and revamped the manufacture of motors as well. Tesla was able to successfully garner 900 patents in the electrical field that had relevance for motor applications. The working parts of a basic electric motor include: Note: Please note that the larger number of field coils used the smoother the motor will run. Simply put, anconverts electrical energy into mechanical energy. This is achieved by the principle of electromagnetic induction. Electromagnetic induction is the principle that a current carrying conductor, when placed in a magnetic field will have a force exerted on the conductor proportional to the current flowing and the strength of the magnetic field. The basic principles of electromagnetic induction were discovered in the early 1800's by Oersted, Gauss and Faraday. However, it was Tesla who was able to take motor technology to the next level in the late 1800's and revamped the manufacture of motors as well. Tesla was able to successfully garner 900 patents in the electrical field that had relevance for motor applications.The working parts of a basic electric motor include: There are various types of AC Motors, including single-phase and poly-phase. Poly-phase motors have phase winding groups that are placed in conjunction with the phase sequence of the power supply line. This produces a rotating field around the rotor surface. Single phase electric motors do not produce a rotating field at a standstill, so a starter winding is added to give the effect of a ply-phase rotating field. Once the motor starts, the winding be eliminated from the circuit and the electric motor will continue to run on a rotating field that now exists due to the motion of the rotor interacting with the single phase stator magnetic field. There are various types of AC Motors, including single-phase and poly-phase. Poly-phase motors have phase winding groups that are placed in conjunction with the phase sequence of the power supply line. This produces a rotating field around the rotor surface. Single phase electric motors do not produce a rotating field at a standstill, so a starter winding is added to give the effect of a ply-phase rotating field. Once the motor starts, the winding be eliminated from the circuit and the electric motor will continue to run on a rotating field that now exists due to the motion of the rotor interacting with the single phase stator magnetic field. DC Motors are ideal for converting direct current or electricity into mechanical energy. The advantages of a DC Electric Motor are: Speed Variation and Torque. Speed of the DC Motor can be controlled by varying the amount of current to the motor. And the turning power, or torque, of the DC Motor can be controlled by varying the amount of power coming from the power supply. DC Motors are ideal for converting direct current or electricity into mechanical energy. The advantages of a DC Electric Motor are: Speed Variation and Torque. Speed of the DC Motor can be controlled by varying the amount of current to the motor. And the turning power, or torque, of the DC Motor can be controlled by varying the amount of power coming from the power supply. There are many varieties of fan motors. Fan motors are electric motors that allow fans to run regularly over a long period of time. The type of fan motor necessary depends on its application. Single-Phase Fan Motor - Single-Phase motors are the most common electric fan motors, as they connect with most smaller sized fans and operate on existing (AC) power sources. Each cycle dips and tops as electrical power increases, making it an electric motor which runs off a reduced amount of electrical power. This process is low-cost and puts little pressure on the electric motor's mechanical functions. Single-Phase Electric Motor - Split-phase motors are used for big commercial fans, or fans in larger devices which run off of a medium amount of electricity. These motors have start and run windings, both of which are stimulated when the motor is activated. Split-Phase Electric motors have built-in safety features that allow them to automatically shut off to prevent burn-out. There are many varieties of fan motors. Fan motors are electric motors that allow fans to run regularly over a long period of time. The type of fan motor necessary depends on its application. A Servo Motor allows for precise control of position. Feedback and angle of the motor is controlled via a control box in this type of motor. Servo Motor applications include laser cutting machines, robotics, CNC machinery or automated manufacturing. A Servo Motor allows for precise control of position. Feedback and angle of the motor is controlled via a control box in this type of motor. Servo Motor applications include laser cutting machines, robotics, CNC machinery or automated manufacturing. How to Choose an Electric Motor When you are attempting to choose the perfect motor, the following should always be considered: Cross reference the manufacturer's part or model number from the motor itself. This information is usually on the nameplate of the motor. If this information is not readily available, attempt to match the electrical specifications and physical dimensions of the defective motor. The following questions should act as a guide through the electric motor selection process: What are the electrical specs? - (typically found on the nameplate of the motor) What speeds do I need? Phase (1 or 3), in the case of appliance or industrial applications What are the physical dimensions? Length and Diameter of the Electric Motor, and Length and Diameter of the Shaft How should I mount this Motor? What is the mounting style of the Electric Motor? (rigid base, belly band, thru-bolts, cradle base, etc...) What type of Enclosure do I need? Is the Electric Motor open drip-proof (ODP), totally enclosed air over (TEAO), totally enclosed fan cooled (TEFC)? Motor application (to what is it attached?) When you are attempting to choose the perfect motor, the following should always be considered:The following questions should act as a guide through the electric motor selection process: This electric motor diagram shows a typical four-pole DC Motor, assembled and disassembled. The electric motor diagram also depicts the windings, commutator, field poles and shaft of the DC Motor. This electric motor diagram shows a typical four-pole DC Motor, assembled and disassembled. The electric motor diagram also depicts the windings, commutator, field poles and shaft of the DC Motor.

1. Where Do We Use Electric Motors?

Computer. One of the most common household appliances ever since the dawn of the Internet! Refrigerator. Another common household appliance, the refrigerator needs small motors to operate its compressor. Microwave oven. Washing machine. Vacuum cleaner. Smartphone. Electric toothbrush. Electric fan. Why do we use electric motor? Electric motors impact almost every aspect of modern living. Refrigerators, vacuum cleaners, air conditioners, fans, computer hard drives, automatic car windows, and multitudes of other appliances and devices all use electric motors to convert electrical energy into useful mechanical energy. How are motors used in everyday life? Electric motors are extremely important in modern-day life. They are used in vacuum cleaners, dishwashers, computer printers, fax machines, video cassette recorders, machine tools, printing presses, automobiles, subway systems, sewage treatment plants, and water pumping stations, to mention only a few applications. Electric motors are found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives. They may be powered by direct current or by alternating current which leads to the two main classifications: AC motors and DC motors. What are 2 household appliances that use an electric motor? Home Appliances The electric washing machine, invented Alva J. Fisher in 1906, is a common home appliance that makes use of an electric motor. Other home appliances that use electric motors include clothes dryers, vacuum cleaners, fans, air conditioners, refrigerators and freezers. What are the 6 parts of an electric motor? These six components include: 1) The Rotor. The rotor is the moving part of your electric motor. 3) The Bearings. The rotor in your electric motor is supported by bearings, which allow it to turn on its axis. 4) The Windings. 5) The Air Gap. 6 ) The Commutator. What Do All of These Components Have in Common? An electric motor converts electricity into mechanical energy, providing a power source for machinery. A generator does the opposite of this, converting mechanical energy into electricity. How does an electric motor work simple? This simple electric motor works by the magnetic force F = IL x B. The current goes around the coil so that it points one direction in one end of the loop and in the other direction at the other end of the loop. The magnetic field at both of these spots points in the same direction. What is the principle of electric motor? The principle of an electric motor is based on the current carrying conductor which produces magnetic field around it. A current carrying conductor is placed perpendicular to the magnetic field so that it experiences a force. Why do we need motors? An electric motor generates power through the interaction between the motors winding currents and magnetic field and then converts that electrical energy into motion or mechanical energy. What is the importance of electric motor in our daily household chores? Electric motors are extremely important in modern-day life. They are used in vacuum cleaners, dishwashers, computer printers, fax machines, video cassette recorders, machine tools, printing presses, automobiles, subway systems, sewage treatment plants, and water pumping stations, to mention only a few applications. General uses for AC motors include pumps, water heaters, lawn and garden equipment, ovens, and off-road motorized equipment. In fact, many of the appliances, equipment and tools you use on a daily basis are powered by an AC motor. What is the role of brushes in electric motor? Carbon brushes, or electric motor brushes, play an important role in motors and generators, serving as electrical conductors. This is achieved by passing electrical current between the motor's stationary and rotating wires. A carbon brush may have one or more carbon blocks and one or more shunts or terminals. What are the types of motors? Each motor has a specific application. Basic motors have been classified into three distinct types: AC motor, DC motor, and specialized motors. Michael Faraday Thomas Davenport William Sturgeon Emily Davenport John C. Lincoln / 1.) 1834 - Thomas Davenport of Vermont developed the first real electric motor ( are al' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields. The early "motors" created spinning disks or levers that rocked back and forth.

2. ran over cord with riding mover, got it out fine, but mower will not restart, what should i look for?

If the blades are tangled or stuck with cords,motor could have damaged. Or check for loose wires including battery connection.

3. how do i shift correctly on my x19 super pocket bike?

First of it is not a MOTORCYCLE it is a toy. if it has a clutch then pull the lever in and put into gear. If not then let motor slow down and put it in gear.

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IGBT of Fuji Motor Electronic Equipment Technology
The IGBT technology of Fuji motor and electronic equipment technology has been commercialized since 1988 and has been supplied in the market so far. Figure 1-3 shows the development process and application technology of IGBT products from the first generation to the fifth generation. Epitaxial wafers are used in the first to third generation IGBT, and the characteristics are improved by optimizing life cycle control and refinement technology of IGBT. Then, the fourth and fifth generation products have achieved significant characteristic improvement through the transition from epitaxial wafer to FZ (floating zone) wafer. In this regard, the design policy of IGBT has changed greatly compared with the past.Firstly, the basic design idea of IGBT using epitaxial wafer (series products up to 600V of the third to fourth generation, called "breakdown type") is as follows. In order to realize the low-pass state voltage during IGBT conduction, a large number of carriers are injected from the collector side to fill the IGBT with high concentration carriers. In addition, the n-buffer layer specially set to maintain the high voltage forms a very thin n-layer, so as to realize the low-pass state voltage. In order to realize fast exchange, life cycle control technology aiming at the rapid disappearance of carriers filled in IGBT is also adopted (through these, low exchange loss (eoff) can also be realized). However, once the life cycle control technology is applied, even in the normal on state, due to the effect of this technology (the carrier transport efficiency decreases), there is a problem of increasing the on state voltage, which can be solved by further high carrier injection.In short, the basic design concept of IGBT using epitaxial wafer technology can be simply summarized as "high injection and low transmission efficiency". In contrast, IGBTs using FZ wafers (series after the fourth generation 1200V) adopt a reverse basic design to inhibit the injection of carriers from the collector side and improve the transmission efficiency by reducing the injection efficiency. In the above-mentioned design concept of IGBT using epitaxial wafer "high injection and low transmission efficiency", the carriers that are not easy to be injected are forcibly suppressed through the control of life cycle, which not only limits the improvement of characteristics, but also increases the standard deviation of on-state voltage characteristics through the control of life cycle, It is very disadvantageous to the large capacity required for parallel use with increasing requirements in recent years. The technology developed to overcome this problem is a new IGBT using FZ chip (NPT: non punch through (used from the fourth generation IGBT) / FS: field stop (used from the fifth generation IGBT) - IGBT). The IGBT does not adopt life cycle control. Its basic design idea is to control the impurity concentration of the collector (P layer), so as to inhibit the carrier injection efficiency. However, in order to realize the characteristics superior to the IGBT using epitaxial wafer, it is also required to realize more than one hundred for the 1200V high voltage resistant series IGBT μ M (the thickness of n-layer in NPT and fs-igbt using FZ wafer ≈ the thickness of chip (wafer). The thinner the thickness, the lower the on state voltage can be generated). In short, it is not too much to call the development of IGBT using FZ chip a challenge to chip thickness.Fuji electric and electronic equipment technology has solved these problems. Starting from the fourth generation 1200V series - IGBT, it has realized the commercialization of "s series" constructed by FZ chip NPT. In addition, 600V series technology with higher thickness requirements is further developed, and 600v-u2 series (fifth generation) is being commercialized. In addition, in 1200V series - the fifth generation "U Series", in order to improve the performance better than s series, NPT structure has been changed to FS structure.The so-called FS structure does not use the life cycle control technology. While following the basic design concept of "low injection and high transport efficiency" of carriers, an n buffer layer to maintain voltage is set on the FZ wafer, so as to realize the IGBT structure thinner than the NPT structure. Through this change, 1200v-u series realizes the low on state voltage characteristic better than s series, and completes its commercialization. In addition, this technology is also used in 1700V series high voltage withstand series, and is also starting to be commercialized.Figure 1-3 changes of Fuji motor electronic equipment IGBT application technologyIn addition, Fuji electric and electronic equipment technology is also refining the surface structure indispensable for the improvement of IGBT characteristics (IGBT is formed by multiple IGBT plates. Through refinement, the more plates, the more low on-state voltage can be realized). Up to the fourth generation products, the planar structure (the structure of planar IGBT) has been used to promote refinement, so as to improve the characteristics. However, starting from the fifth generation products - 1200 and 1700V series, the grooved IGBT technology slotted on the Si surface and constituting IGBT has broken the subtle technical barrier and achieved unprecedented characteristic improvement. Figure 1-4 shows the change of characteristic improvement of 1200V series.Figure 1-4 improvement of balance characteristics
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