Source: wikibot/no-load-loss
= No-load loss
{wiki=No-load_loss}
No-load loss, also known as core loss or static loss, refers to the energy lost in a transformer or magnetic device when it is energized but not supplying any load (i.e., no current flowing through the secondary winding). These losses occur primarily due to two main factors: 1. **Hysteresis Loss:** This occurs due to the magnetization and demagnetization of the core material as the alternating current (AC) flows through the winding.