what is the difference between synchronous and induction generator?
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The main difference between synchronous generator and induction generator is the link between rotor speed and ac supply frequency generated by the machine. For a synchronous machine, the frequency is synchronous to the speed. ... For an induction machine, the frequency is not more proportional to the speed.
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A generator converts mechanical energy into electrical energy, while a motor does the opposite - it converts electrical energy into mechanical energy. Both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field.
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Generators are the basic building blocks of generating electricity. ... The last major difference is in how power generators and power plants generate. Generators tend to be limited to converting matter into electricity, while power plants may convert matter into electricity, steam, or kinetic energy.
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An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor.
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In an alternator, electricity is produced when a magnetic field spins inside the stator (windings of wire). In a generator, on the other hand, the armature or windings of wire spin inside a fixed magnetic field to generate electricity.
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Synchronous motor is a machine whose rotor speed and the speed of the stator magnetic field is equal. Asynchronous motor is a machine whose rotor rotates at the speed less than the synchronous speed. ... AC Induction Motor is known as the Asynchronous Motor. Synchronous motor does not have slip.
201509
The two main types of AC motors are induction motors and synchronous motors. The induction motor (or asynchronous motor) always relies on a small difference in speed between the stator rotating magnetic field and the rotor shaft speed called slip to induce rotor current in the rotor AC winding.
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Induction motors turn at a speed proportional to frequency, so a high frequency power supply allows more power to be obtained for the same motor volume and mass. Transformers and motors for 400 Hz are much smaller and lighter than at 50 or 60 Hz, which is an advantage in aircraft (and ships).
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Alternator vs. Generator: The Differences. ... The alternator converts mechanical energy into AC while a generator converts it into both AC and DC. Alternators have a rotating magnetic field, and a generator has a stationary magnetic field.
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The Difference between Motor and Generator are as follows:-. The current is to be supplied to the armature windings in case of a Motor, and in Generator, current is produced in the armature windings. Motor follows Fleming's Left hand rule while Generator follows Fleming's Right hand rule.
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Electric generators work on the principle of electromagnetic induction. A conductor coil (a copper coil tightly wound onto a metal core) is rotated rapidly between the poles of a horseshoe type magnet. The conductor coil along with its core is known as an armature.
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However, the process they use is different. An AC generator creates an alternating current that periodically reverses direction. But in a DC generator, a direct current flows in one direction. In an AC generator, the coil through which current flows is fixed and the magnet usually moves.
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While induction and universal motors differ in their construction, they both run on AC (universal can run on both DC and AC). The main difference is that the induction motor's rotor does not have to be connected using electrical connections. ... However, it has some modification that allows it to run on AC power.
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An alternator is a device that converts mechanical energy into AC electrical energy. A generator is a mechanical device which converts mechanical energy to either AC or DC electrical energy. ... Alternators have higher output than generators. Generators have a lower output when compared with an alternator.
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Generators are usually very noisy and run at constant speeds of typically 3600 rpm to produce electricity. The engine speed should remain constant to generate electricity. On the other hand, inverters can adjust the amount of power produced using microprocessors.
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The principle of operation of a synchronous motor can be understood by considering the stator windings to be connected to a three-phase alternating-current supply. The effect of the stator current is to establish a magnetic field rotating at 120 f/p revolutions per minute for a frequency of f hertz and for p poles.
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Motor has a dc current as an input and provides mechanical output. Generator has a mechanical energy as an input and provides DC current as an output. Motor uses cummulators for changing the magnetic field polarity whereas in generator they are used to cancel the polarization effect.