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A phase current is the current passing through a phase, whereas a line current is the current flowing through a line.
In the case of a balanced delta-connected load, IL = 1.732 IP. In the case of a balanced star-connected load, IL = IP.
For unbalanced loads, these relationships don't hold true, and must be individually calculated.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoOn a delta system the line current would be 1.732 times higher than the phase current. In a Wye system the line current and phase current are the same. In a parallel circuit (Delta) current divides. In a series circuit (Wye) current stays the same.
Another AnswerLine currents pass through line conductors, whereas phase currents pass through phases. 'Phases' are (in the case of a supply) are the windings of a three-phase alternator or (in the case of the load) are the loads themselves. 'Lines' are the three energised conductors that connect the load to the supply.
Wiki User
∙ 8y agoA 'phase current' is the name given to the current in a phase and a 'line current' is the name given to the current in a line.
'Lines' are the conductors that connect a three-phase load to a three-phase supply.
'Phases' are the individual windings in a machine, or the individual impedances that make up a three-phase load.
In the case of a star (wye) connected load, the line current is numerically equal to the phase current.
In a the case of a balanced delta connected load, the line current is 1.732 greater than the phase current.
Wiki User
∙ 10y agoSqrt(3). Line current is 1.73 times phase current.
AnswerLine currents occur in the three lines (the conductors that connect the supply to the load). Phase currents occur in the phases (i.e. in the three individual loads, or in the three armature windings of the supply generator).
For a balanced wye-connected load, the line currents are numerically-equal to the phase currents.
For a balanced delta-connected load, the line currents are 1.732 times the phase currents.
Wiki User
∙ 13y agoIT depends upon the 3-phase connnection ..if it is
Y connection:line current = phase current
if it is delta connection: IL=(root 3)IPh
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Axial fans are like a propeller - like most domestic fans. Centrifugal fans are like water or paddle wheeels that sit inside a case. Instead of water turning them, the wheel is driven by the motor and that moves the gas. In-line merely means that the fan sits in the gas flow.
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What is the difference between tangential and radial acceleration?
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What is the difference between Load Current Line Current and Phase Current?
A load current is a current drawn by an electrical load. In other words, it is the current flowing from the source to the load.For a single-phase system, a line current is a current flowing through the line, or 'hot', conductor, while the current through the neutral conductor is called the neutral current.For a three-phase system, the three 'hot' conductors between the load and the source are called 'lines' and, so, the currents passing through them are called 'line currents'. For a three-phase system, loads are either connected between line conductors (delta-connected system) or between each line and the neutral (star- or wye-connected system), and represent the phases -so the currents passing through the loads are called 'phase currents'.For a balanced three-phase system, the line current is 1.732 times the value of a phase current, where the phases (loads) are connected in delta. For phases (loads) connected in star (or 'wye') the line current is numerically-equal to the phase currents.
What is a line to line voltage?
In a 3 phase system, the voltage measured between any two phase is called line to line voltage.And the voltage measured between line to neutral is called phase to neutral (line to neutral) voltage.AnswerThere is no such thing as a 'phase-to-phase' or a 'phase-to-neutral' voltage. The correct terms are 'line-to-line' and 'line-to-neutral'.The voltage between any two line conductors is called a line voltage.In a three-phase, three-wire, system, the line voltage is numerically equal to the phase voltage.In a three-phase, four-wire, system, the voltage between any line conductor and the neutral conductor is called a phase voltage. The line voltage is 1.732 times larger than the phase voltage.
Why line current is greater than phase current in delta connection?
Because if you apply Kirchhoff's Current Law to the junction between the line current and the two phase currents, the line current is the phasor (vector) sum of two phase currents. For a balanced load (only), this works out to 1.732 x phase current.
What is phase current?
A phase current is the current passing through a phase, whereas a line current is the current flowing through a line.
What happens when phase to phase line is connected?
If there is a voltage differential from phase to phase, and a conductance (inverse of resistance) between them, then current (amperes) flows. This is no different than phase to neutral, i.e. voltage across conductance generates current, (I = EC, or I = E/A) except that neutral current is zero in a true phase to phase connection.Note that phase angle is always relative. In phase to neutral, it is relative to (typically) neutral; while in phase to phase, it is relative to the other phase. By Fourier Analysis, the difference between two phases of the same frequency, but of different phase angles, is still a sine (or cosine) wave. Also, by Kirchoff's Current Law, (implied, and I will (sort of) not repeat it here), current entering from one phase and equally leaving via another phase will not reflect at all in the neutral conductor.The simple answer is that connecting phase to phase is a short circuit, just like connecting phase to neutral.CommentThere is no such thing as 'phase to phase' or 'phase to neutral'. The correct terms are 'line to line' and 'line to neutral'.
Is the full load current rating of a 3 phase motor referring to amps per phase?
NO, ONLY ONE. If you are measuring line current. The purpose of the line to line measurement is to know if your load is drawing balance ampere and slight difference is negligle.
How do you measure voltage in a 3 wire single phase system?
For a three-phase, four-wire, system, the line voltage is measured between any pair of line conductors, while the phase voltage is measured between any line conductor and the neutral conductor. For a three-phase, four-wire, system, the line voltage is numerically-equal to the phase voltage, and both are measured between any pair of line conductors.
How do you convert line current to phase current?
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What is the difference between power factor and power booster?
Power factor is well defined and measures the difference between the phase of current and voltage. It varies from 1 to zero with 1 being associated with a pure resistive load. Since you multiply voltage times current to compute instantaneous power; if they are out of phase then you get reduced power. A power booster, in this context, would be a device that was designed to compensate for the our of phase situation and bring the phases more in line, effectively boosting power.
In delta connection what is formula for phase current?
Line current = 1.732 x Phase CurrentCommentOnly for balanced loads.
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