20-07-2025, 09:47 AM
I just tested the inductance. Here's what Mr AI thought.
Analysis of Measured Transformer Inductance
Summary of Results
Winding Measured Inductance (H)
Primary 0.863
Secondary 0.266
CT–Leg1 0.066
CT–Leg2 0.063
Interpretation
1. Inductance Ratio and Turns Ratio
Inductance is proportional to the square of the number of turns
2. For your transformer, the measured inductance of the primary is notably higher than that of the secondary, consistent with the primary having more turns and likely experiencing marginally better coupling to the core.
The ratio of primary to secondary inductance (0.863 H : 0.266 H ≈ 3.25:1) is roughly in line with the square of the turns ratio suggesting measurement consistency and good transformer construction.
2. Full Secondary vs. Center Tap Inductance
The two measurements (CT–Leg1: 0.066 H, CT–Leg2: 0.063 H) are very close, indicating the secondary is well center-tapped and the winding distribution is relatively uniform.
The sum of the CT–Leg1 and CT–Leg2 inductances (≈0.129 H) is lower than the measured full secondary inductance (0.266 H), reflecting mutual magnetic coupling effects: when measuring across the entire secondary, both halves support the magnetic field, and the measured inductance is more than the sum of the parts due to constructive coupling.
3. Implications
Good core coupling: The measured inductance values are reasonably high for your winding and core structure, supporting efficient transformer operation and minimal unnecessary core magnetizing current.
Transformer symmetry: The near match in CT–Leg inductances shows careful winding and symmetry, important for balanced dual-voltage or full-wave center-tapped applications.
Absence of significant defects: No major imbalance or unexpectedly low inductance values were detected, suggesting the windings are intact, core is assembled correctly, and there are no shorted turns.
4. What These Values Reveal
Primary and secondary inductances are consistent with turns ratio and expected core behavior.
Center tap measurements confirm good winding and splitting accuracy.
The transformer should perform well for intended AC voltage transformation, and the core is providing effective magnetic coupling.
Key Takeaways
The transformer’s measured inductance values align with theoretical expectations for your winding and core.
Both symmetry and high-enough inductance confirm good design and practical function for power transfer and voltage stepping.
Inductance measured at the center taps supports proper full-wave rectification or dual-rail operation with minimal imbalance.
If you need further interpretation or investigation into other winding properties, let me know!
Analysis of Measured Transformer Inductance
Summary of Results
Winding Measured Inductance (H)
Primary 0.863
Secondary 0.266
CT–Leg1 0.066
CT–Leg2 0.063
Interpretation
1. Inductance Ratio and Turns Ratio
Inductance is proportional to the square of the number of turns
2. For your transformer, the measured inductance of the primary is notably higher than that of the secondary, consistent with the primary having more turns and likely experiencing marginally better coupling to the core.
The ratio of primary to secondary inductance (0.863 H : 0.266 H ≈ 3.25:1) is roughly in line with the square of the turns ratio suggesting measurement consistency and good transformer construction.
2. Full Secondary vs. Center Tap Inductance
The two measurements (CT–Leg1: 0.066 H, CT–Leg2: 0.063 H) are very close, indicating the secondary is well center-tapped and the winding distribution is relatively uniform.
The sum of the CT–Leg1 and CT–Leg2 inductances (≈0.129 H) is lower than the measured full secondary inductance (0.266 H), reflecting mutual magnetic coupling effects: when measuring across the entire secondary, both halves support the magnetic field, and the measured inductance is more than the sum of the parts due to constructive coupling.
3. Implications
Good core coupling: The measured inductance values are reasonably high for your winding and core structure, supporting efficient transformer operation and minimal unnecessary core magnetizing current.
Transformer symmetry: The near match in CT–Leg inductances shows careful winding and symmetry, important for balanced dual-voltage or full-wave center-tapped applications.
Absence of significant defects: No major imbalance or unexpectedly low inductance values were detected, suggesting the windings are intact, core is assembled correctly, and there are no shorted turns.
4. What These Values Reveal
Primary and secondary inductances are consistent with turns ratio and expected core behavior.
Center tap measurements confirm good winding and splitting accuracy.
The transformer should perform well for intended AC voltage transformation, and the core is providing effective magnetic coupling.
Key Takeaways
The transformer’s measured inductance values align with theoretical expectations for your winding and core.
Both symmetry and high-enough inductance confirm good design and practical function for power transfer and voltage stepping.
Inductance measured at the center taps supports proper full-wave rectification or dual-rail operation with minimal imbalance.
If you need further interpretation or investigation into other winding properties, let me know!
