If alternators are connected in series then if one alternator damaged then,whole alternator that all connected to it will be damage.Interruption will occur.so by connecting parallaly if one alternator will damage,then others are safe and they will supply power to load.
Anathor thing is that we can control our power.
why in parellel .of alternator connected in parellel
Since the alternators are in parallel, the resultant voltage should be the same as either alternator - exactly as it would be if two batteries are connected in parallel. Voltage remains the same but current capacity is doubled. I would recommend connecting the alternators through a network that will balance the load between them.
before two alternators can be connected in parallel, the output voltage of the two machines should be the same, the phase rotation of the machines must be the same, and the output voltages of the two machines must be in phase.
Let's say both Alternators are 24V. If you put them is series, you are adding the potential, or electrical pressure. Putting them in parallel keeps the pressure the same, but you added another path for current (amps).
When connecting two alternators in parallel, it is important for their voltages to be in phase. This means that the peaks and troughs of the voltage waveforms from each alternator align, ensuring a consistent and stable output. If the voltages are directly out of phase, it can lead to destructive interference and potentially damage the generators.
In a grid system all the alternators run in parallel, locked together in frequency.
They are different and unequal.
AC generators (properly called "alternators") must be EXACTLY synchronized when connected together (either in parallel or series) or one will act as a motor and drain power from the other instead of adding. This can also damage the equipment.Most alternators sold to the public lack the special equipment needed to synchronize as it usually isn't needed for the "stand alone" electric sources these are commonly used for.
Resistance is connected in parallel with voltmeter or say, voltmeter is connected in parallel with resistance.
Voltmeters are connected in parallel in a circuit.
Home devices are connected in parallel and not in series.
All home appliances are connected in parallel.