The electrical motor is a device that converts electrical energy into mechanical energy. In simple terms, the electrical motor is a device used for producing rotational energy.
What is electric motor 10th class?
Electric motor is a device that converts electrical energy to mechanical energy. Parts of a Electric Motor. Insulated Copper wire: A rectangular coil of wire ABCD. Magnet Poles: A magnet as placed above ie North Pole and South Pole.
What is motor short?
A motor fails when its windings short to ground, short to each other, or open–a break in the winding’s wire. The wire in the windings use an insulating covering as an isolation barrier. If the winding’s insulation wears away near the motor’s case, the bare-wire winding shorts to ground.
What is an electric motor called?
Definition: Electric motor is the electro-mechanical machine which converts the electrical energy into mechanical energy. In other words, the devices which produce rotational force is known as the motor. … The electric motor is mainly classified into two types. They are the AC motor and the DC motor.
What is an electric motor explain with diagram?
An electric motor is a device that converts electrical energy into mechanical energy. Diagram: Electric motor. Working of an electric motor: An electric motor works on the principle of magnetic effect of electric current. In an electric motor, a rectangular coil ABCD in placed between two magnets in poles N and S.
What is an electric motor explain its principle and working?
The electric motor works on the principle of magnetic effects of current. Its principle is when a rectangular coil is placed in a magnetic field and current is passed through it, the coil rotates as a result of the forces acting on the coil. … Rotor Armature: It performs continuous rotation while the motor is running.
Why do motors short?
A short is a common winding breakdown, and it requires rewinding or replacing the motor. Shorted turns are caused by nicked coil wire, high-voltage spikes, conductive contaminants, overheated winding, aged insulation, and loose, vibrating coil wires.
Why does a motor short circuit?
Reasons for Short Circuit Faults of Motor Windings
(1) The long-term overload of the motor causes aging of the insulation. (2) Insulation damage caused by wire insertion. (3) The damp winding reduces the insulation resistance and causes insulation breakdown.
What is short circuit current in motor?
Motor’s contribution is the current generated by a motor or motors during a short circuit condition. It represents a small but important value that is needed to determine the maximum short circuit current available and thereby establishing the short circuit rating of electrical equipment.
What is an electric motor used for?
An electric motor is a device used to convert electrical energy into mechanical energy. 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.
What is motor and how many types of motor?
Basic motors have been classified into three distinct types: AC motor, DC motor, and specialized motors.
What are types of electric motor?
Types of Electric Motors
- 1). DC Shunt Motor. …
- 2). Separately Excited Motor. …
- 3). DC Series Motor. …
- 4). PMDC Motor. …
- 5). DC Compound Motor. …
- 1). Synchronous Motor. …
- 2). Induction Motor. …
- 1). Stepper Motor.
What are the parts of electric motor?
Electric motor designs can vary quite a lot, though in general they have three main parts: a rotor, a stator and a commutator. These three parts use the attractive and repulsive forces of electromagnetism, causing the motor to spin continually as long as it receives a steady flow of electric current.
How an electric motor works physics?
A simple electric motor can be built using a coil of wire that is free to rotate between two opposite magnetic poles. When an electric current flows through the coil, the coil experiences a force and moves. … When the electric current changes direction, the same end of the electromagnet becomes its south pole.
What is electric motor shaala?
Working of the electric motor:
When current is passed through the coil ABCD, arms AB and CD experience force. … Both these forces are equal and opposite. This force rotates the coil in the anticlockwise direction until the coil is vertical. At this position, the contact between commutator and brushes break.