Vector diagrams of three-phase circuits

A vector diagram is a way of representing alternating voltages and currents using vectors.

Vector diagram of a three-phase EMF system and EMF graph of phases A, B and C:

Vector diagram of a three-phase symmetrical EMF system:

Vector diagram of the voltages of a symmetrical star-connected load:

Construction of a voltage diagram of a symmetrical star-connected load:

Vector diagram of the currents of an active unbalanced star-connected load:

Drawing a vector diagram for an unbalanced load with a break in the neutral wire:

Unbalanced load with neutral wire break:

Drawing a diagram for an unbalanced load. Star without neutral wire:

Vector diagram of a symmetrical star-connected load:

Vector diagrams of voltages and currents when connecting receivers with a delta:

Vector diagram of voltages and currents when connecting receivers with a delta:

Vector diagram of voltages and currents when connecting receivers with a delta (unbalanced load):

Vector diagram of voltages and currents of an unbalanced delta-connected load: