relation between phase and line voltage angle|Line voltage leads phase voltage by 30 degree micom

In electrical power system Line to Line voltage always leads a balanced phase to neutral voltage by 30 electrical degree. here necessary vector diagram drawn from numerical relay display data. But why line voltage leads phase voltage? Very simple, try to draw line voltage by using phase voltage vectors.

[@Kishore99ification]

Awesome... But very short.. waiting for more analysis

[@eddycurrent1187]

Another video published.