G. No-Load and Full Load Losses No-Load Losses Losses occur when the transformer is energized, even if it is not supplying load. No load losses are due to the following: • Hysteresis Loss - magnetization and demagnetization of the core. •
Eddy Current Loss - induced circulating currents in the core laminations. These are influenced by lamination thickness and flux density. Stray Eddy Losses - occur in metallic parts outside the core due to the leakage of magnetic flux. Dielectric Losses - minor losses in insulation materials. These are typically negligible in distribution transformers.
•
•
Page 41
Made with FlippingBook - PDF hosting