0
This is in the wiring, the armature(s) field coils, etc, by the way if DC it would have permanent ( fixed) field magnets, not field coils. ac motors have Field coils, not to be confused with Field Amperage or Primary Coils- the latter being the (heart) of a transformer, consult Audels or similar technical shop manuals.
What else can I help you with?
How shunt helps to extend the range of ammeter?
A shunt is connected in parallel with an ammeter. Any current applied to parallel devices will divide betwen them, so the ammeter will pass only a part of the total current.
What field setting for a dc shunt motor wired in series on high voltage?
A shunt dc motor has quite different characteristics from a series motor. Wired in series, the same current passes through the armature and the field winding and it is most unlikely that a shunt motor would have a field winding that is suitable for this. Therefore a shunt motor cannot be wired as a series motor in general because its field winding is designed for only a small current.
Why does the field winding of a series dc machine has less number of turns than that of a dc shunt machine?
The series winding takes the full load current of the generator. So it require only a few turns to produce the required magnetic field and so the resistance is lower.
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.
Why a dc shunt generator may fail to self excite?
If there is no residual magnetism in the field poles then there would be no flux too induce the initial voltage for self exitation
What is the difference between shunt generators and series generators?
1. In Shunt generators armature current is equal to sum of field current and load current whereas in series generators field current and load current is same. 2. Shunt generators field winding has high resistance and large no of turns as compared to series generators. 3. Shunt generator field winding has thin conductor and series generator has thick.
Why shunt resistance is connected in the parallel?
Shunt means parallel only..................
What are the differences of Long shunt vs short shunt generator?
In long shunt the shunt field winding is in parallel to both generator and series field. In short shunt the shunt field is in parallel to generator only.
Can oxygenators be used on commercial airlines?
There are already chemical generators which can produce oxygen which is used in planes. It can produce oxygen only for a short period of time.After that its power runs out.
How many volts does the average AC power generator make?
This depends on what you are meaning by "Average". A typical small generator you can throw in the back of a truck will produce 120 volts, some can do 240. Building backup generators would produce whatever voltage is needed for that building (if it's a plant that using 480 volts, it will produce 480 volts). "Large" Wind turbine generators often produce 600-1000 volts; good sized power plants (100MW and up) will typically have a terminal voltage of 10-30kV.
Difference between function generator and signal generator?
A signal generator provides a high-fidelity sine wave signal ranging from low frequencies to many GHz. Attenuation, modulation, and sweeping are typical features of a signal generator.A function generator is a lower-frequency instrument that typically provides sine, square, pulse, triangle and ramp waveforms. Function generators provide these standard functions from DC to a few MHz, and provide large voltage ranges.
What has to be interchange in order to reverse the direction of rotation of shunt generator?
the direction of the rotation of dc shunt generator could be changed only by changing the direction of rotation of the prime mover
What are potential uses of radioisotope thermoelectric generators besides spacecraft and unmanned lighthouses?
Thermoelectric generators use thermocouples to produce there energy and this methos is very inefficient (only about 3-7%). With such low efficiencies they only produce a few hundred watts, if higher efficiencies were ever reached and there output was a few hundred to thousands of kilowatts then the possibile uses could be endless... But at the rate of advancement in this feild, its not likely to happen anytime in the near future.
Differences in Electric Generators?
Electric generators produce varying amounts of power depending on the model you buy. Some are capable of running an entire house or building when the power goes out. Others, however, only produce minimal amounts of electricity, enough for only one or two appliances or lights. This makes it important to carefully assess your electric needs before purchasing a generator. Doing so will ensure that you are covered when you need to use one.
How shunt helps to extend the range of ammeter?
A shunt is connected in parallel with an ammeter. Any current applied to parallel devices will divide betwen them, so the ammeter will pass only a part of the total current.
What is the procedure for measuring current?
A: The procedure is very simple must have a voltmeter and must have a very low value of shunt in series with the circuit whereby the IR drop will be converted into amps. That works for DC only. For AC the signal is rectified and then measured or a flux clamp can measure the current
This converter is for audio only, not for a TV signal.?
This converter is for audio only, not for a TV signal.
