The line voltage of a delta connected three phase circuit is 415 V. The phase voltage is:

Correct option is D

$$\text{The line voltage of a delta-connected three-phase system is } V_L = 415\,\text{V.} \\[8pt]\text{For a delta-connected system:} \\[4pt]V_L = V_p \\[8pt]\text{Where:} \\[4pt]\bullet \; V_L \text{ is the line voltage.} \\[4pt]\bullet \; V_p \text{ is the phase voltage.} \\[8pt]\text{Since it is a delta-connected system, the line voltage is equal to the phase voltage. Therefore:} \\[4pt]V_p = V_L = 415\,\text{V}$$​​