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A balanced three phase load is where the current flowing in all three phases of the load are reasonably close to each other.
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When the voltage and measured current draw do not deviate by more than 2 percent under load.
AnswerA balanced three-phase load is one in which each of the three loads is identical in all respects (magnitude and phase). Further to the first answer, the three line currents must not all be 'reasonably close', they must be identical -i.e. the same value and phase relationship.
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TaigaIt is a load on a three-phase system that produces unequal load currents in the three phases. The ideal load is always balanced, with equal currents in the 3 live wires.
In LV power distribution it is usually not possible to guarantee a balanced load except by aggregating up a lot of loads and hoping that the total load is reasonably balanced. Thus a street of houses will usually provide a reasonably balanced load on the three-phase supply even though each house is connected to only one phase.
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What is the effect of an unbalanced load of generators?
An unbalanced load prevents the generator delivering its maximum power. That is because each phase has an equal upper current limit that it can deliver, and in an unbalanced system, if one phase is delivering the rated current it follows that the others are not.
Line read 20 amp different per phase to load?
The electrical term for this condition is called an unbalanced load.
What is difference between balanced and unbalanced load?
three phase load is said to be balanced when the impedance and power factor of each load is equal.in this condition phasor sum of currents and phase voltages add up to zero.
How much will neutral current be in a 3phase 4-wire y system with a balanced load?
Balanced load means no unbalanced currents, so the neutral current should be near zero.
Is the line is necessary for the balanced star- connected load?
I think you probably mean is a neutral conductor necessary for a balanced star-connected load? If this is what you mean, then the answer is no, it isn't, as the phasor-sum of the phase currents will equal zero. Often, though, it is difficult to achieve a balanced load, so a neutral is then necessary, as it is needed to provide a return path for the unbalanced current -without this neutral, the phase voltages would change and become unbalanced.
