How are asymmetrical currents defined?

Asymmetrical currents are characterized as non-symmetrical currents, which means that they do not have a balanced current distribution across all phases in a three-phase system. In an ideal scenario, symmetrical currents would result in equal magnitudes and phase angles, resulting in a balanced system. However, when there is a fault or an imbalance caused by varying loads, the currents become asymmetrical. This unbalanced condition can lead to issues such as increased heating in electrical equipment and complications in protection schemes. Understanding this distinction is crucial for effectively diagnosing and managing issues in power systems.