Scientifically speaking, the electric motor is a unit used to convert electric power into motive energy or electrical energy into mechanical energy. Fig. 1.1 is a flow diagram of energy. The left end of the arrow represents the electrical input and the right end the mechanical output respectively.
Is a motor an output device?
Contactors, motor starters, valves, and other Output devices are used to turn on/off motors, lights, heating elements, and other equipment that affects the system in some way. Like Input devices, both Discrete and Analog Output devices are available.
What is the output of a motor?
The power of a motor is the product of its speed and torque. The power output is greatest at about half way between the unloaded speed (maximum speed, no torque) and the stalled state (maximum torque, no speed). The output power in watts is about (torque) x (rpm) / 9.57.
What is the input and output of an electric motor?
⇒ For a motor the input energy is electrical energy and the useful output energy is mechanical energy. The generator is used to produce an electric current from rotational motion (on large scale power stations a turbine is used to provide this rotation).
Is DC motor input or output?
In the DC motor above, the supply voltage E and current I is given to the electrical port or the input port and we derive the mechanical output i.e. torque T and speed ω from the mechanical port or output port.
What is input power of motor?
For an electrically driven motor, the output power is mechanical while the input power is electrical, so the efficiency equation becomes efficiency = mechanical power/electrical input power.
What is a motor in computer?
Electric motors are devices that convert electrical energy into mechanical energy. Devices that do the opposite—convert mechanical energy into electrical energy—are called generators.
What is the input of DC motor?
The input of a brushless DC motor is current/voltage and its output is torque. Understanding the operation of the DC motor is very simple from a basic diagram is shown below. DC motor basically consists of two main parts. The rotating part is called the rotor and the stationary part is also called the stator.
What is motor load?
Electric motor load means the current drawn by an electric motor. It depends upon the load on the shaft of the motor. For a given electric motor, it can estimated using input power, amperage or speed of the motor.
Is a motor an engine?
“People use both interchangeably, but the difference is that motors run on electricity and engines run on combustion. The engine converts various forms of fuels into mechanical force, while the motor transforms electrical energy into mechanical energy.”
How do you find the power output of an electric motor?
By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.
What is input and output power?
Input refers to the amount of energy put into a device, and output refers to the amount of energy that comes out. A device may change the type of energy but not the amount. For example, a light bulb’s input energy is the form of electrical energy, and its output energy is in the form of light and heat. Efficiency.
What is a commutator in a motor?
A commutator is a rotary electrical switch that periodically reverses the current between the rotor and the external circuit. The commutator was discovered by William Ritchie and Hippolyte Pixii in 1832. Commutators are used in DC machines (DC motors and DC generators) universal motors.
Can a motor make electricity?
Typically, a motor converts electrical energy to mechanical energy. However, in this project we will used a motor for the exact opposite, generate electrical energy from mechanical energy. This device is knows as an alternator, but thanks to the laws of physics we can also use the motor as such.
Is a motor electrical or mechanical?
A motor is the mechanical or electrical device that generates the rotational or linear force used to power a machine. A drive is the electronic device that harnesses and controls the electrical energy sent to the motor.