1. What is the Transformer Equation?

The transformer equation relates the input and output voltages of a transformer to its turns ratio. It provides a fundamental relationship in electrical engineering for designing and analyzing transformers.

2. How Does the Calculator Work?

The calculator uses the transformer equation:

Where:

• \( V_{in} \) — Input voltage (volts)
• \( V_{out} \) — Output voltage (volts)
• \( \text{ratio} \) — Turns ratio (N_secondary/N_primary)

Explanation: The output voltage is directly proportional to the turns ratio of the transformer.

3. Importance of Transformer Calculations

Details: Accurate transformer calculations are crucial for designing power systems, selecting appropriate transformers, and ensuring proper voltage conversion in electrical circuits.

4. Using the Calculator

Tips: Enter input voltage in volts and turns ratio (secondary turns divided by primary turns). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical turns ratio for a 400V transformer?
A: For a 400V output from 230V input, the ratio would be approximately 1.739 (400/230).

Q2: Does this account for transformer losses?
A: No, this is the ideal equation. Real transformers have small losses (typically 1-3%) due to core losses and copper losses.

Q3: Can this be used for step-down transformers?
A: Yes, the same equation applies. For step-down, the ratio will be less than 1.

Q4: What about current calculations?
A: For an ideal transformer, \( I_{out} = I_{in} \times (1/\text{ratio}) \), neglecting losses.

Q5: How does frequency affect the transformer?
A: The basic voltage equation doesn't include frequency, but transformer core design must account for operating frequency.