# Finding Turns Ratio for Different Transformer Configurations

• Altan Tok
In summary, the conversation is about transformer calculations and understanding the turns ratio for different configurations. The transformer is designed to match impedances of 600 W (pins 1-3) to 10 kW (pins 4-5) or 150 W (pins 1-2 or 2-3) to 10 kW (pins 4-5). The turns ratio can be calculated using the formula Rl/Rp=(Ns/Np)^2, where n is the amount of turns and R is the impedance. The goal is to calculate the turns ratio and provide a formula for VS as a function of VP. However, the expert summarizer states that they cannot provide the solution as it goes against the rules of the
Altan Tok
So I was studying on transformer calculations and understand it all pretty well until coming across these questions that I don't really understand. There's about 6 of them but if someone could work out 2 for me so I can understand it and finish it off it would be much appreciated.
Thanks

Electrical Specifications: Impedance at 1 kHz
1 - 2 150 W

2 - 3 150 W

1 - 3 600 W

4 - 5 10 kW

DC Resistance

1 - 3 23 W

4 - 5 400 W

Rated Power 2 W

-->This transformer is designed to match impedances 600 W (pins 1-3) to 10 kW (pins 4-5) or 150 W (pins 1-2 or 2-3) to 10 kW (pins 4-5).

-->Note that you can reverse primary and secondary to match 10 kW (pins 4-5) to either 150 W (pins 1-2 or 2-3) or 600 W (pins 1-3).

For each of the configurations in Figure 11, calculate the turns ratio NS/NP. Use Equation (6) and the transformer specifications on page 6 to calculate the turns ratios for each combination and provide a formula that gives VS as a function of VP. Enter your results in the table below.

NS/NP:

VS = f(VP):

Step-up / Step-down:

My attempt:
so I'm trying to figure out the turns ratio of each of them and I think you use the formula Rl/Rp=(Ns/Np)^2 where n is the amount of turns and R is the impedance. would the impedance be 600 ohms and 10 k ohms? do I have to consider each part as 1-2, 1-3 and 4-5?

Last edited:
Sorry, but PF is not a homework service.

If you want to take a stab at solving your problem, we'll provide hints and suggestions, but we don't do your work for you. It's against the Rules.

## What is a transformer?

A transformer is a device that transfers electrical energy from one circuit to another through electromagnetic induction.

## What are the components of a transformer?

A transformer consists of two or more coils of insulated wire, called windings, that are wound around a core of magnetic material.

## How do you calculate the turns ratio of a transformer?

The turns ratio of a transformer is calculated by dividing the number of turns in the primary winding by the number of turns in the secondary winding.

## What is the difference between step-up and step-down transformers?

A step-up transformer increases the voltage from the primary to the secondary winding, while a step-down transformer decreases the voltage.

## How do you calculate the output voltage of a transformer?

The output voltage of a transformer can be calculated by multiplying the input voltage by the turns ratio of the transformer.

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