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When ac generators are operated in parallel frequency and voltage must be equal or frequency and voltage must equal amperage?
Wiki User
∙ 16y ago
This question is worded awkwardly, but, the answer would be, They must be of equal Voltage (primarily) and equal frequency. If they were of different voltages, one would feed the other. The amperages can be different.
If these generators were going into a distribution unit, the DU would have to have a frequency matcher, and would also force the output voltage to meet the load voltage (in the case of minor voltage deviations).
Can you rephrase this question into several smaller questions? I'll help you out as much as I can from there, and go to "MY Bio Page" and ask other more detailed questions.
Wiki User
∙ 16y ago
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Why shaft generator can not operate in parallel with auxiliary generator?
Normal shaft generators do not have droop-control for frequency and voltage. Semiconductor (drive) based variable speed shaft generators may have those today.
What causes generators in parallel with same voltages and KW to have different amps?
If they are at the same voltage, and the same kW, the only thing left that will influence the output amperage is the power factor the generator is running at.
Is this normal during a parallel of two generators where lead generator is higher in both load ampere and reactive power than the lag generator but with the same frequency same kilowatt load?
No it is not normal. Ideally both the generators share the load equally provided both generator ratings and other parameters are same.
At a frequency below the resonant frequency parallel circuit is?
A parallel resonant circuit has low impedance, when non resonant; however the impedance rises sharply, as the circuit comes to resonance.
How can the power output of generators be coupled?
Generally speaking, the outputs of generators can be coupled by connecting the generators in parallel. In generators that produce DC (direct current), the voltages need to be equalized and the polarities of the connections needs to be observed. Both negatives are connected together and both positives connected together to create one parallel output. In an AC setup, the generators need to be running about the same voltage, and must be connected in phase for the setup to be successful. In practice, the generator that is being brought online is run up, and it frequency is allow to be a little bit faster than the unit that is online. When the phase difference is being observed, and the difference is approaching zero, at a "couple of degrees before" the zero, the generator that is being brought online is then connected to the grid and it "locks in" so that all the generators are running in phase. Connecting DC generators positive to negative is an invitation to disaster, and bringing an AC generator online 180 degrees out of phase with an running generator is the same kind of disaster. Shutting a breaker to parallel generators without insuring polarity concordance (in the case of the DC ones) or phase concordance (in the case of the AC ones) will pit one generator against the other, and severe damage will result.
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.
Is it feasible to parallel the dissimilar rating generators?
yes,but the two dismaler generators should have the following similarity; 1]same voltage rating 2]same frequency 3]same rpm.
What happens to amperage in series and parallel circuits?
In series, Amperage remains constant. In parallel, Amperages are added.
Why shaft generator can not operate in parallel with auxiliary generator?
Normal shaft generators do not have droop-control for frequency and voltage. Semiconductor (drive) based variable speed shaft generators may have those today.
What causes generators in parallel with same voltages and KW to have different amps?
If they are at the same voltage, and the same kW, the only thing left that will influence the output amperage is the power factor the generator is running at.
What does Incoming and running generators are in same phase while paralleling two generators mean?
When two generators are to be run in parallel, one generator is first started and some load is given. Then second generator is brought in parallel with the running generator (subject few conditions, like voltage, frequency, phase angle). First generator which is running is known as running generator, the second generator which gets connected is known as incoming generator
List out the conditions to be satisfied for running two or more DC shunt generators in parallel?
List out the conditions to be satisfied for running two or more DC shunt generators in parallel?
Does battery amperage doubles when in a parallel?
Yes, and when in series the voltage doubles.
Does amperage increase as the number of bulbs in a parallel circuit increase?
Yes.
Is this normal during a parallel of two generators where lead generator is higher in both load ampere and reactive power than the lag generator but with the same frequency same kilowatt load?
No it is not normal. Ideally both the generators share the load equally provided both generator ratings and other parameters are same.
Can two lv same transformer operated in parallel?
Yes it can
Why do you build solar cells in both parallel series and series configurations?
You put them in series to get more voltage, and in parallel to get more current (amperage).
