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What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?
"...The main difference between a DC generator and an AC generator lies in the manner in which the rotating coil is connected to the external circuit containing the load..."
Excerpt from: http://farside.ph.utexas.edu/teaching/316/lectures/node91.html
In other words, the commutator that the brushes contact makes the difference between AC/ (semi) DC output. You can also use electronic switching these days to get DC from AC generators.
What else can I help you with?
What are positive and negative terminals?
Positive and negative terminals are locations on a device or component where electrical connections can be made. The positive terminal typically has a higher voltage potential, while the negative terminal has a lower voltage potential. Ensuring proper connection to these terminals is important for the correct operation of electrical circuits.
Why terminal voltage of a self excited shunt generator decreases with an increase of load?
The terminal voltage of a self-excited shunt generator decreases with an increase in load due to an increase in voltage drop across the internal resistance of the generator. As the load current increases, the drop across the internal resistance also increases, reducing the output voltage available at the terminals. This effect is known as voltage regulation and is a common characteristic of self-excited shunt generators.
What amperage can a 2000 watt generator produce?
Use the formula I = W/E, Amps = Watts/Volts. Apply the voltage of the generator to the formula and the results will be the amount of amperage the generator will produce.
How does the load affect voltage output of a series generator?
In a series generator, the voltage output is directly affected by the load. As the load increases, the voltage output decreases due to increased voltage drops across the internal resistance of the generator. Conversely, reducing the load will result in an increase in the voltage output.
If a voltmeter has one black and two red terminals how should it be connected?
The black terminal is typically connected to the negative terminal on the circuit, while one of the red terminals is connected to the positive terminal. The other red terminal is used to measure the voltage across the circuit by placing it in parallel with the component or point where you want to measure the voltage.
What is the off load voltage of the generator?
Terminal voltage is the voltage between the output terminals of a generator.
Which will normally have the larger resistance a voltmeter or an ammeter?
A voltmeter has the large resistance.The voltage across any component can be measured if & only if the terminals of that component will be open and this will we can acheiv if we connect the high resistance voltmeter across the open terminals of that component to measure the voltage.
How does ac electric motor convert in to an alternator?
a motor is a generator and a generator is a motor, if you are applying a voltage to turn the rotor its a motor and if you are turning the rotor and taking the voltage off the terminals its a generator or alternator.
What is the probable cause for no voltage generated in a DC compound generator?
In any DC generator the causes to fail to produce voltage is loss of residual flux in the field or fields , poor brush contact in the commutator(clean the brushes and commutator) , check all the terminals of the generator and voltmeter may not be functioningand lastly check the coupling and the prime mover is rotating.
What are the components of a generator?
The rotor, the stator and the voltage regulator are three main components of a generator. If you are talking about a motor generator set then of course the other main component would be the engine to drive the generator.
Can the star point of a 400 volt three phase generator be grounded to produce 240 volts?
A 400/230-V three-phase generator hase three line terminals, together with a neutral terminal. The line voltage (i.e. the voltage between any pair of line terminals) is 400 V, while the phase voltage (i.e. the voltage between any line terminal and the neutral terminal) is 230 V.
How does an electric generator works?
The voltage was produce by cutting of the magnetic flux by the conductors.
What are the main components of a generator?
The rotor, the stator and the voltage regulator are three main components of a generator. If you are talking about a motor generator set then of course the other main component would be the engine to drive the generator.
Does a generator produce ac or DC voltage?
NO, generator always generating AC current,when commutator is used,at that time AC is converted in DC.and due to this generator is called dc generator.
What are positive and negative terminals?
Positive and negative terminals are locations on a device or component where electrical connections can be made. The positive terminal typically has a higher voltage potential, while the negative terminal has a lower voltage potential. Ensuring proper connection to these terminals is important for the correct operation of electrical circuits.
How does voltage produce current?
Voltage across two terminals mean there exists a potential difference, and when the circuit gets closed, due to this potential difference the current flow.
Generator excitation voltage?
the voltage which is given for creating magnetic field in a generator is known as excitation voltage.
