What is the turns ratio for a 230v to 12v transformer?

What is the turns ratio for a 230v to 12v transformer?

220 divided by 12 equals 18.333333333 which means for every wire turn of the 12 volt side you will need 18.33 turns on the 220 volt side. Let’s say you have 5 turns per volt on the 12 volt side you will have 60 turns.

How is transformer rated voltage calculated?

Since you know kVA = V * l / 1,000, we can solve for V to get V = kVA * 1,000 / l. So you’ll multiply your kVA rating by 1,000 and then divide by the amperage. If your transformer has a kVA rating of 75 and your amperage is 312.5, you’ll plug those numbers into the equation — 75 * 1,000 / 312.5 = 240 volts.

How do you calculate maximum current rating?

How is current carrying capacity calculated?

1. The formula for calculating current carrying capacity is:
2. I = permissible current rating.
3. ∆Φ = Conductor temperature rise in (K)
4. R= Alternating current resistance per unit length of the conductor at maximum operating temperature (Ω/m)

What is step-up transformer formula?

As an example, a 10:1 step-up transformer requires ten times the turns on the secondary winding: In this formula, we converted the voltage from 5V to 50V (step-up) in a transformer with ten turns on the primary winding, and 100 turns on the secondary winding.

What is the difference between step up transformer and step down transformer?

A Step up Transformer is a device which converts the low primary voltage to a high secondary voltage i.e. it steps up the input voltage. A Step down Transformer on the other hand, steps down the input voltage i.e. the secondary voltage is less than the primary voltage.

How to calculate the rating of a transformer?

Now calculate for the rating of transformer according to P=V x I (Primary voltage x primary current) P = 11000V x 5.25A = 57,750 VA = 57.75kVA Or P = V x I (Secondary voltages x Secondary Current)

How do you calculate the voltage of a transformer?

The transformer calculator uses the following formulas: Three Phase Transformer Full-Load Current (Amps) = kVA × 1000 / (1.732 × V) V = voltage (volts). I2 = secondary current. Example: A 50 kVA single-phase transformer has a 4000 V primary, and a 400 V secondary. Assuming an ideal transformer, determine

How to calculate the primary and secondary current of a transformer?

This transformer calculator helps you to quickly and easily calculate the primary and secondary full-load currents of the transformer. It also determines the turns ratio and type of transformer. Click on the “Calculate” button to obtain the results. The transformer calculator uses the following formulas: V = voltage (volts). I2 = secondary current.