11 = 30° lag (voltage lags current)
• Example: Dyn1
o D – Delta Primary o Y – Wye Secondary o N – Neutral o 1 – Voltage is Leading Current by 30°
• Vector Groups
o System compatibility - Ensures correct phase alignment when paralleling transformers o Load balancing - Supports proper distribution of three-phase loads o Harmonic mitigation- Zigzag and delta configurations help suppress harmonics o Grounding strategy - Determines neutral availability and fault current paths.
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