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.
Why are motors essential to our daily 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.
Why do we use electric motors?
The electric motor provides high power for take off and short flights without fuel. A petrol engine drives a generator for backup power and longer range. Copper cables supply the high electric current to the motor.
Why is electric motor efficiency so important?
Losses exist in all motors due to friction, heat, and materials, to name a few factors, so minimizing these losses is critical for applications that run off a battery. The higher the efficiency of the motor, the longer the battery life during operation which results in longer time between charging.
What is the importance of motors and generators?
The electric motor converts electrical energy into mechanical energy. Motors convert approximately 50% of all electricity into motion for driving modern society.
Where can we use the motor in the daily life?
Motors In Everyday Life
- Home Appliances And Audio & Visual Equipment. …
- IT, Communication And Office Equipment. …
- Healthcare And Medical Equipment. …
- Commercial Equipment. …
- Industrial Equipment. …
What is uses of motor?
Electric motors are found in industrial fans, blowers and pumps, machine tools, household appliances, power tools and disk drives. Small motors may be found in electric watches.
What is the principle of 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.
What is inside an electric motor?
There’s a permanent magnet (or magnets) around the edge of the motor case that remains static, so it’s called the stator of a motor. Inside the stator, there’s the coil, mounted on an axle that spins around at high speed—and this is called the rotor. The rotor also includes the commutator.
How does a basic electric motor work?
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 makes a motor powerful?
Strength of a motor:
The strength of the motor (torque) is determined by voltage and the length of the wire in an electromagnet in the stator, the longer the wire (which means more coils in the stator) the stronger the magnetic field. This means more power to turn the rotor.
What is energy efficient motor?
Description. Energy efficient motors use less electricity, run cooler, and often last longer than NEMA (National Electrical Manufacturers Association) B motors of the same size. … Thus, a motor that is 85 percent efficient converts 85 percent of the electrical energy input into mechanical energy.
What is the most efficient motor?
ABB recently set the world record for electrical synchronous motor efficiency. During factory acceptance tests (FATs) carried out with the customer present, we recorded a result of 99.05% full load efficiency on a 44 megawatt, 6-pole, synchronous motor.
What are the advantages and disadvantages of electric motors?
Electric motors have a number of advantages when compared to traditional engines. The initial cost of an electric motor is much lower than a fossil-fuel engine with the same horsepower rating. Electric motors have relatively few moving parts, which means they have a longer lifespan.
What is the application of electrical motor and generators in our daily life?
The purpose of an electric motor is to convert electrical energy into mechanical energy. This mechanical energy can then be used to power everything from heavy, industrial machinery to everyday tools and appliances such as hair dryers.
Can a motor generate electricity?
You can use just about any motor to generate electric current, if it is wired correctly and you follow specific rules for its use. Modern AC induction motors are quite simple to wire as alternating current generators, and most will begin generating electricity the first time you use them.