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What is the voltage difference between active and neutral wires?
Wiki User
∙ 10y ago
There is no such thing as a 'phase-to-phase' voltage. The correct term is 'line-to-line' voltage or 'line voltage'.
For a star (wye) connected system, the line voltage is 1.732 times the phase voltage, where the phase voltage is measured between any line and neutral.
Wiki User
∙ 8y ago
Wiki User
∙ 13y agoThe phase angle between voltage and current is the difference in time, usually expressed in degrees, between the voltage and current. This difference is due to the capacitive or inductive reactance of the circuit, causing the current to lead (capacitive) or lag (inductive) the voltage. In a theoretically perfect circuit, phase angle is +90 degrees for a capacitor and -90 degrees for an inductor. In a generator, phase angle is 180 degrees. In a (resistive) toaster or light bulb, phase angle is 0 degrees.
Wiki User
∙ 10y agoWhat you call the 'active' conductor is correctly called the 'line' conductor. The difference is that the neutral conductor is at approximately the same potential as earth (ground), whereas the line conductor is at a higher potential. For example, for residential supplies in Europe, the line conductor has a nominal potential of 230 V with respect to the neutral, and in North America each line conductor (there are two of them) is at a nominal potential of 120 V with respect to the neutral.
Wiki User
∙ 10y ago2-phase supplies were used in the early days before the advantages of 3-phase were realised.
A 2-phase supply has two single-phase supplies that peak a quarter-cycle apart. That allows a rotating magnetic field to be produced so that 2-phase induction motors can work without special measures for starting.
A 2-phase supply can be made with two live wires carrying equal currents and a combined neutral. The current in the neutral is sqrt(2) times the current in either of the live wires, so it is only a slightly more efficient means of power transmission than two separate single-phase supplies.
Wiki User
∙ 11y agoThere are many voltages between what are classed as single phase systems. Any two legs of a three phase system is classed as single phase system. On wye connections there are 120/208, 240/415, 277/480, 347/600, 120/240 just to name a few on the lower voltage scale. On delta systems the leg combinations are L1 - L2, L2 - L3, L3 - L1. Any of these leg combinations are classed as single phase wiring.
Wiki User
∙ 11y agoFor residential supplies, the nominal voltage between a line and neutral is 230 V (in Europe) or 120 V (in North America).
Wiki User
∙ 14y agoThe phase angle is zero, when in phase.
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