Aprenda a cálcular as espiras para bobinar transformador #pirovip

Learn How to Calculate Turns to Wind Your Transformer! In this video, you will learn step-by-step how to calculate the number of turns to build your own transformer. Discover how to find the core area of ​​the transformer. Learn how to use the correct variable depending on the transformer's function. See how to calculate the turns for the primary and secondary windings. If you want to know how to wind transformers, this video is for you! Regarding the number of turns per volt, would this same formula apply to higher power transformers (e.g., 5000VA)? I'm referring to the constant 48.4; if the divisor is greater than the constant 48.4, it will give a very small number because the higher the current (amperage), the larger the cable diameter. How would this relationship be for higher power transformers (3000VA, 5000VA, etc.) with the constant 48.4? This is a great question and touches on a crucial point about transformer sizing. The constant 48.4 (or 42 in some other variations, depending on the wire gauge and core shape) is an area constant, generally used to calculate the number of turns per volt in low-power transformers, where magnetic flux density and efficiency are not as critical or are more standardized. It is derived from a simplification of the fundamental transformer formula (E = 4.44 \cdot f \cdot N \cdot \Phi), where \Phi is the magnetic flux. However, for higher power transformers (such as 3000VA, 5000VA, or more), the approach changes significantly. In these cases, the constant 48.4 is not the most suitable and can lead to inaccurate or inefficient results. For high-power transformers, the calculation of the number of turns per volt (and consequently, the sizing of the core and wire) is done more rigorously, taking into account the following factors: Magnetic Flux Density (B): For higher power levels, it is essential to operate the core within an ideal magnetic flux density for the material used (e.g., silicon steel), avoiding saturation and minimizing losses. This value is typically specified in Tesla (T) or Gauss. Cross-Sectional Area of ​​the Core (Ae): The effective area of ​​the core is calculated based on the desired power and the chosen magnetic flux density. A common formula for larger transformers is: Ae = \frac{P \cdot 10^4}{4.44 \cdot f \cdot B_{max} \cdot K_w} Where: P is the apparent power in VA f is the frequency in Hz B_{max} is the maximum magnetic flux density in Gauss (to convert to Tesla, divide by 10,000) K_w is the window factor, which considers the available space in the core for the coils. Number of Turns per Volt (N/V): Once the core area is determined, the number of turns per volt is calculated using the fundamental formula: N/V = \frac{1}{4.44 \cdot f \cdot B_{max} \cdot Ae} Where Ae is the core area in cm^2. Current and Cable Gauge: You are absolutely correct! The higher the current (amperage), the larger the cable gauge needed to handle that current without overheating and energy losses. Current density (A/mm²) is a crucial factor here, and generally ranges from 2 to 3.5 A/mm² for power transformers. In summary: The constant 48.4 is a useful simplification for low-power transformers, but for 3000VA, 5000VA or higher transformers, you need a more precise calculation that takes into account magnetic flux density, effective core area, and current density for winding sizing. 🔍 Copy this text into the Mercado Livre search engine: 0TL4JM-2NUK 🔗 Or access the link: https://meli.la/1ucFyhQ #transformer #diy #electronics #pyrography #pirovip Check out other videos on the channel, you'll love them 👇🏻 How to make a homemade pyrography tool:    • como fazer pirógrafo artesanal caseiro   How to make a homemade voltage regulator:    • como fazer regulador de tensão caseiro   How to make pyrography pens: How to make pyrography tips:    • como fazer canetas artesanal para pirógrafo   Ideas with a microwave transformer:    • Ideias com transformador de microondas   Ideas with an ATX power supply:    • ideias com fonte ATX   Homemade inventions: [Links to YouTube playlists are included in the original text and are not translated here.] Channel Showcase: [Link to YouTube playlist is included in the original text and is not translated here.] General Electronics Repair: [Link to YouTube playlist is included in the original text and is not translated here.] Pyrograph for Subscribers: [Link to YouTube playlist is included in the original text and is not translated here.] [Link to Facebook page is included in the original text and is not translated here.]