- #1
bogoa
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how can I get the number of turns on my primary and the secondary transformer..if my primary voltage is 220v and my secondary voltage is 12v..
Primary voltage is 220v and my secondary voltage is 12v
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Discussion Overview
The discussion revolves around calculating the number of turns in a transformer given a primary voltage of 220V and a secondary voltage of 12V. Participants explore the relationship between voltage and turns ratio, as well as considerations for transformer design.
Discussion Character
- Technical explanation
- Mathematical reasoning
- Debate/contested
Main Points Raised
- One participant suggests that the turns ratio can be calculated by dividing the primary voltage by the secondary voltage, resulting in a ratio of 18.33.
- Another participant clarifies that while the turns ratio can be determined, the actual number of turns cannot be calculated without additional information.
- A different viewpoint emphasizes the importance of having sufficient turns on the primary side to ensure high reactance (XL) to limit current draw when the secondary is open.
- One participant provides a guideline regarding the maximum magnetic flux density in the transformer core, suggesting a specific number of primary turns based on core size and voltage per turn.
Areas of Agreement / Disagreement
Participants generally agree on the method to find the turns ratio but disagree on the ability to determine the actual number of turns without further specifications. The discussion remains unresolved regarding the exact number of turns needed.
Contextual Notes
Limitations include the lack of information about the core material and dimensions, which are necessary for calculating the actual number of turns. Additionally, assumptions about operating frequency and core saturation are not fully addressed.