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What is Transformer Inrush Current Last Modification about?
Inrush current is a transient phenomenon occurring when a transformer is energized without a load, drawing 3-15 times the rated current for a short duration, which can lead to core saturation and potential relay tripping. Factors influencing inrush current include residual flux, transformer design, and system impedance. Techniques for mitigation include built-in resistors, higher voltage tap connections, soft energization, and point on wave switching methods.
- Author
- Salem Elhouni
- Language
- EN