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What is the difference between commutator and rectifier?
A commutator is a rotary electrical switch in certain types of electric motors or electrical generators that periodically reverses the current direction between the rotor and the external circuit. It helps maintain a constant direction of current flow in the rotor windings. On the other hand, a rectifier is an electrical device that converts alternating current (AC) to direct current (DC). It allows current to flow in only one direction, effectively converting the bi-directional AC current into unidirectional DC current.
Can clipper act as a half wave rectifier?
A clipper can act as a half wave rectifier but it might be a little hard.
What is the purpose of commutator in a dc generator?
Commutators are used to get unidirectional current Flow through the external circuits in DC generator system.A commutator is an electrical switch that periodically reverses the current direction in an electric motor or electrical generator.
What is the function of brush in a dc generator?
It has two main functions in a generator - firstly, it transfers the electrical energy from the (moving) armature coils to the (stationary) external electrical load circuit. The brushes are made of graphite, with a tiny trace of copper in it, so they're self-lubricating where they ruib on the copper commutator bars (those copper strips on the armature that the coil ends connect to). Secondly, the electricity generated in the rotating armature coils is alternating current, and the brushes, working with the commutator acts like a switch to reverse the connections between the coil ends and the external circuit when the alternating voltage reverses its polarity (+ and -) to give direct current in the external circuit. Have a look at http://community.myelectrical.com/wikis/myelectricalwiki/basic-generator-operation.aspx for more information.
Explain the working principle of shunt generator?
A shunt generator is a machine with a rotating set of coils of wire embedded in the iron core in its armature (the spinning part), and a 'commutator' and brushes that carry the current from the (spinning) windings on the armature to the stationary external electrical load. It also has a 'field' winding that creates a stationary magnetic field inside the machine, that the armature coils are spun in. As the windings spin, they cut the stationary field and generate an alternating voltage. As well as providing a moving connection to the coils, the commutator and brushes act like a switch, reversing the connections from the coils to the external circuit each time the waveform changes polarity from positive to negative and vice versa. This creates direct current in the external circuit and load. In a shunt generator, the field windings are connected in parallel with the armature ('shunt' is a common term for 'in parallel') and the field gets its power ('excitation') from the armature - the machine is 'self-excited'. A self-excited generator needs a small 'residual field' in the field's iron core so it can generate a small output from the armature when starting, which is fed to the field, boosting the armature output, which is fed to the field.... and so on, until the field iron core saturates with flux, and the field stops strengthening. Shunt generators are the 'workhorse of the small generator market - they are cheap and simple, have an output voltage that 'droops' a little with increasing load, and most shunt generators can safely be short-circuited - this takes the electrical energy away from the field, and the armature can usually develop only a small output current - not enough to damage it.
What is the difference between commutator and rectifier?
A commutator is a rotary electrical switch in certain types of electric motors or electrical generators that periodically reverses the current direction between the rotor and the external circuit. It helps maintain a constant direction of current flow in the rotor windings. On the other hand, a rectifier is an electrical device that converts alternating current (AC) to direct current (DC). It allows current to flow in only one direction, effectively converting the bi-directional AC current into unidirectional DC current.
Can clipper act as a half wave rectifier?
A clipper can act as a half wave rectifier but it might be a little hard.
What is the Purpose of commutator ring in electric motor?
A 'commutator' has several functions. The three main functions are: (a) to interconnect the individual armature windings, (b) to provide a means of connecting the rotating windings to the fixed, external, conductors, and (c) to act as a rotary rectifier -i.e. to change the a.c. voltage naturally induced into the rotating armature into a d.c. voltage at its terminals.
What is the purpose of commutator in a dc generator?
Commutators are used to get unidirectional current Flow through the external circuits in DC generator system.A commutator is an electrical switch that periodically reverses the current direction in an electric motor or electrical generator.
Which act took federal employees out of machine politics?
Hatch Act
What does the commutator in an electrical motor do?
If there is a commutator, it means you are dealing with a DC motor.The commutator acts like a switch to supply voltage to a revolving armature from the stationary brush assembly.A commutator has commutator bars, each seperated by mica insulation. Each coil of the rotating armature is connected to two bars that are in directly opposite positions across each diameter of the armature.The total number of commutator bars depends on the design of the windings on the armature: either "lap" or "wave" windings can be used on a DC motor or generator which is provided with a commutator.For more information see the answer to the Related question and also the Related link shown below.
Which type of simple machine do bicycle pedals act as?
A shifter is a lever, a lever is a simple machine
How does torque reverse in a dc motor after half a revolution?
The point is that, with a d.c. motor, we don't want the torque to reverse every half-revolution, if the motor is to continue running in the same direction. To achieve this, we use a split-ring commutator/brushes, which rotates with the armature coil. Essentially, a split-ring commutator has twofunctions: (1) to enable us to connect the rotating coil to an external supply circuit and (b) to act as a rotating switch, ensuring that the armature current always flows in the same direction relative to the motor's magnetic field. Thanks to (b), the machine will continue to rotate in the same direction.Without a split-ring commutator, after half a revolution, the armature current will reverse direction relative to the magnetic field, the torque will reverse, and the motor will reverse direction.
What is understood by the term percentage regulation of a rectifier?
the regulation is act of filtering the ac component of the output signal.in percentage regulation we calculate the percentage of the filtering component.
What is the Gun Control Act of 1934?
There was no US Gun Control Act of 1934 Another Answer: In 1934 the Federal Government passed the National Firearms Act. It placed a 200 dollar tax and other restrictions on the sale of machine guns. It required registration for the ownership of machine guns. It prohibited felons from owning machine guns.
What is microsystem?
A microscale machine that can sense information from the environment and act accordingly.
Bones and muscles act like what type of simple machine?
m
