WHAT IS LINE(VOLTAGE,CURRENT) AND PHASE(VOLTAGE AND CURRENT)

Line and Phase:

We all always have confusion between line and phase voltages....so now get some clarity here....

The issue of these line and phase voltages come into account only in case of 3-phase networks...that is either Star or Delta

Consider the above star connection.

Line Current:The current passing through the line that is IR,IB,IY are known as Line Currents.

Line Voltage:The voltage across two lines of a star connection that is VRY,VBY,VBR are Line Voltages.

Phase Current:The current passing through the Impedance that is IRN,IBN,IYN are Phase currents.

Phase Voltages:The voltage across the impedance that is VRN,VBN,VYN are known as Phase Voltages.

All these parameters are the same in case of Delta Connection also