Question and Answers Motors and Generators, Electrical Interview Question And Answers||
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What is the purpose of an exciter for a motor?
A Exciter. The exciter supplies direct current to the field winding of the generator, at whatever voltage is required to overcome the resistance of the winding.
What are the two major parts of a motor generator?
Parts of a Generator and How They Work - Woodstock Power
The alternator houses two major components that allow the generator to effectively and efficiently produce energy: the stator and rotor. The stator is a stationary component that contains a set of electrical conductors that are coils wound together housing an iron core.
What is the connection between motors and generators?
An electric generator is a device that converts mechanical energy into electrical energy; it is essentially an electric motor being run in the opposite way. The energy conversions in the motor are the reverse of those in the generator.
What is the working principle of exciter?
The excitation system excites the armature by creating a magnetic field on the rotor via a DC current. The output voltage of the armature varies with the strength of the magnetic field. Thus, the excitation system controls the output voltage of the generator by adjusting DC current to the generator field winding.
What is the principle of the motor?
What is an electric motor ? State its principle.
Principle: An electric motor (dc motor) works on the principle that when an electric current is passed through a conductor placed normally in a magnetic field, a force acts on the conductor as a result of which the conductor begins to move and mechanical energy is obtained.
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Is motor generator AC or DC?
AC and DC Generator
Generators that convert mechanical energy to electrical energy are known as AC generators.
What are the 3 main parts of a motor?
No matter the type of motor, there are three basic parts: a stator, a commutator, and a rotor. Together they use electromagnetism to cause the motor to spin. As long as the motor receives steady current, the motor works.
Does a motor generator produce AC or DC?
Generators are capable of both AC and DC power. Alternators usually are made for A/C (alternating current) applications, hence the name "alternator."
What is motor and its type?
Types of Motors and its practical application in real life
We know there are generally two types of motors, AC motor, and DC motor. AC motors are flexible for speed control and demand low power during start. On the other hand, DC motors are widely used due to its initial cost of low power units is less compared to AC and can be easily installed.
What is the principle of DC motor?
DC Motor - Definition, Working, Types, and FAQs
When kept in a magnetic field, a current-carrying conductor gains torque and develops a tendency to move. In short, when electric fields and magnetic fields interact, a mechanical force arises. This is the principle on which the DC motors work.
Which motor is best for generator?
A brushed DC motor is appropriate for generator applications requiring a DC voltage output, while a brushless DC motor is suitable for AC voltage applications. If using a BLDC for DC voltage output, a voltage rectification circuit is needed.
What does kVA stand for?
kVA stands for Kilo-volt-amperes - a term used for the rating of an electrical circuit. kVA is the product of the circuits maximum current and voltage rating. It is also known as Apparent Power. There are three factors that we need to look at: Apparent Power, Actual Power and the Power Factor.
What is kVA formula?
Volts x Amps / 1,000 = KVA
Based on the equation, one would need to plug in the proper load/output (secondary) voltage and current (amps) to compute for KVA. Note that load voltage is not the same as line voltage, which is also known as primary voltage or input.
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What is sleep point in 6hi mill
Thanks dear for query,
The relative difference between the roll surface speed and strip at exit speed is slip .
This slip point control to friction and tension control.
Sir Question and answer ko English and Hindi me dono m batao sir.
Ok dear, in this video, you can see English and Hint both . Thanks for query .