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A three-phase alternator has three sets of windings that produce three currents. The three currents make up the three phases. Together these produce the total AC output of the stator. An alternator is made up of a stator and a magnet rotor which is also known as the flywheel.

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The outer, stationary, part which supports the armature windings (the windings into which the three-phase voltages are induced), is called the 'stator'. The inner, rotating part, which supports the field windings, is called the 'rotor'. The field windings are supplied with a d.c. voltage, via a commutator and brushes.

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Q: Working principle of 3 phase alternator?
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What is the working principal of 3 phase alternator?

A 3 phase alternator is an AC electrical generator with 3 sets of windings in the stator. These windings overlap each other in phase angle, or timing relationship, by 120 degrees with respect to each other. The rotor (field or excitation) current is DC, and is adjusted to regulate the output power.


How do you calculate the phase current when working with a 10kw 3 phase electrical motor?

The 3 phase formula you are looking for is I = HP x 746/1.73 x E x% Eff x pf. Where I = amps, E = voltage, %Eff = percent efficiency of the motor and pf = power factor.


How do you hook up 3 phase to a 10 hp compressor?

First you have to have three phase power coming in. 3 phase are three hot wires working together on a syne wave. If you have 3 phase coming in, hook the three hot wires into the compresser, if it runs backwards, trade places with two of the wire and let the third one alone and you should be running.


When you have 56KVA available in 3 phase supply how much is your available current in 3 phase and how much in 1 phase?

In three phase: I = (three phase VA) / (sqrt(3) x (phase to phase voltage)) for single phase: I = (single phase VA) / ((phase to neutral voltage)) keep in mine three phase VA = 3 x (single phase VA), and phase to phase voltage = 1.732 x (phase to neutral voltage) Therefore the single phase and three phase currents are the same (ie, the three phase currents are the same in all three phases, or balanced). But don't get available current and available power confused (KVA is not the same as KW).


Can you use 3 phase circuit as 3 separate single phase circuit?

yes we can use as a single phase circuit because at practise directly the 3-phase circuit is made by combining the three single phase circuits

Related questions

What is the working principal of 3 phase alternator?

A 3 phase alternator is an AC electrical generator with 3 sets of windings in the stator. These windings overlap each other in phase angle, or timing relationship, by 120 degrees with respect to each other. The rotor (field or excitation) current is DC, and is adjusted to regulate the output power.


How many coils is required in an alternator to generate 3 phase electricity?

3


For a 3 phase alternator why there is an AC voltage generated in the absence DC excitation?

due to residual magnetism


What kind of electricity is produced by a car?

the alternator produces a 3 phase AC electrical current that is "converted" into a single phase DC electrical current. This is done courtesy of the diode trio located in the regulator assembly of the alternator. typical output of an alternator is about 14 v DC and about .1 V AC.


How can you get a three phase output from 110v from step down transformer?

You can't. Three phase is a different animal.You'll either need to:drop in 3 phase power (expensive proposition),run a motor that drives a 3 phase generator. (another expensive proposition)FYI, the alternator in your vehicle is 3 phase, then it's converted to DC using a diode plate.


What is the difference between an alternator and a stator?

An alternator is a device that generates power for an automobile to run its electrical loads and to charge the battery. A stator is one of the internal parts of the alternator, specifically the stationary windings that generate the 3-phase AC.


How do you hack a 4pole 3 phase car alternator to get ac voltage?

The alternator has six diodes inside to recify the ac that is generated. One side of the diodes is the ac side, so maybe you can solder on three live wires and use the case as the neutral, then you have 3-phase four wire, about 300 watts.


What is the star delta working principle?

when starting a 3 phase induction motor,first start with star connection,because reduced current is being applied and after start change it to delta connection then. full line current is applied to the motor.


Working principle of synchronus motor?

A synchronous motor is a three phase motor, which uses a magnetic field created by permanent magnets or a DC electromagnet on the rotor (usually). The stator windings have 3 phase voltages applied, and coupled with the DC field, create a rotating magnetic field that drives the motor at synchronous speed.


How do you convert a ac generator to dc generator?

The method used in cars is to have a 3-phase generator or alternator which is turned by the engine. Six diodes in a full-wave rectifier connect the alternator directly to the car's battery.


Why dc voltage increased less rapidly as the dc current increases at three phase alternator?

if you mean in your question Why the generated voltage (AC voltage) increased less rapidly as the dc current increases at three phase alternator? the answer is: because the magntic material that used in the 3 phase alternator will reach to satruration case of producing the magnatic flux so will happen a knee saturation curve in (I dc) versus (E ac) curve. Engr. Emad


Chhattisgarh state road sector devlopement phase-3 road?

Currently Chhattisgarh is working completing the Phase-II roads and there is no news about Phase-III Apna Chhattisgarh road development.