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What remedy is applied to the voltage and amp frequency of the alternator when it is loaded?
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What are causes of change in voltage of alternators when loaded?
actully when load of alternator fluctuates it changes the torque at primovers which changes amps so terminal voltage of alternator changes.
Why does an alternators voltage rise when it is loaded down with a leading load?
Because in the leading load or capacitive load the armature reaction is magnetizing.Here the stator flux adds up rotor flux and so the net flux of alternator increases and the net flux produces alternator's voltage.Hence the alternator's voltage rises.
Why are ac generators loaded after reaching full speed?
If the load was connected as the speed was increasing it would not be operating on its proper frequency. Also as the RPM is increasing so is the output voltage.
Frequency voltage and amperage must be equal when ac generators are operated in parallel?
Frequency and voltage, yes. Amperage - desirable but not mandatory. Paralleled generators that are equally sized generally have a load balancing control that accomplishes this function. Generators that are of different ratings may be loaded to different current levels because of their capacity limitations.
What cause the voltage drop in shunt generator when its loaded?
because the voltage likes to drop
Why does an alternators voltage drop sharply when it is loaded down with a lagging load?
An alternator's terminal voltage shouldn't drop 'sharply' when subjected to a lagging power-factor load. After all, most practical loads are inductive and it wouldn't do for an alternator's terminal voltage to drop 'sharply' for what is a normal load. Nevertheless, in common with most voltage sources, there will be a moderate drop in its terminal voltage due to the internal voltage drop caused by the load current passing through the impedance of the armature windings. Perhaps surprisingly, however, there may be an increase in terminal voltage when supplying a leading power factor, the reason for which can be demonstrated using simple phasor analysis of the alternator's induced e.m.f. and internal voltage drop -this cannot be shown here, but there are lots of websites which demonstrate this.
What is the effect in output for changing input frequency in halfwave rectifier?
if filtered and loaded the average DC voltage will increase and the ripple AC voltage will decrease, but the peak voltage is unchanged. this is because the filter capacitor has less time to discharge into the load.if unfiltered or unloaded the voltage cannot change. unfiltered the waveform just follows the half cycle of the input. if filtered but unloaded the output is DC at the peak voltage of the input AC.
How do you tighten the serpentine pulley on the alternator?
You don't. The tension on the belt is held tight by a spring loaded tensioner idler.
How can you tighten the tension on alternator belt after RR alternator on Nissan Sentra XE 1995?
It should have a spring loaded automatic tensioner, if the spring is broke replace the tensioner arm assembly
What is voltage regulation?
Voltage regulation:(from point of view of electrical machines or generator): It is the change in voltage in between the full loaded and no loaded condition. When there are no loads connected the terminal voltage is equal to the generated voltage in the generator. But when load is connected the terminal voltage is found to be lass than the no loaded condition, due to armature resistance leakage reactance.This phenomena is expressed as, % reg=(Vnl-Vfl)/Vfl * 100%.Which is Voltage regulation. ************************************************************ An ideal voltage source has zero internal impedance. A practical one, even a good one, has internal impedance. With no load on the source, the terminal voltage will have a given value. Once a load current is drawn there will be a voltage drop across the source's internal impedance, and the terminal voltage will therefore drop. The higher the load current, the higher the voltage drop. A regulator circuit, added after the source, can counter the effect of the source's impedance and maintain an output voltage which is more constant than the source itself can achieve.
How hard is it to change an alternator belt on a mk3 golf diesel?
Dead easy, take drive belt off power steering pump. Slacken off alternator's two 13mm nuts, push down on spring loaded alternator, take off alternator belt, put on alternator belt. Reverse process. Job done
What is the effect of transformer impedance on regulation?
The lower the impedance, the lower the voltage drop across the transformer as it is loaded. This means regulation is better, since voltage variance is smaller.
