# Step Down Transformer & Step Up Transformer Calculator

### Step down transformer & Step up transformer calculator:

Transformer Current Calculator

The transformers are being classified based on the output voltage levels and they are step-down transformer and step-up transformer.

Step-up transformer:

If the output voltage is greater than the input voltage, then such transformers are called a step-up transformer.

i.e Vp input voltage in volts and Vs output voltage in volts, if Vs > Vs then such transformers are called a step-up transformer.

Output voltage > Input Voltage

Step Down Transformer:

The transformer which output voltage is lesser than the input voltage is called step down transformer.

Typically,

Vp > Vs

Input Voltage > Output Voltage

The difference between these two voltages always maintains an integer ratio, It is called voltage ratio.

## How to identify a transformer?

Generally, if the transformer is mentioned by 11kV/415V means, it is called step-down transformer, the input will be given as 11kV and the output will be connected to 415V.

At the same time, the transformer is mentioned by 22kV/220kV means, it is called a step-up transformer. The input will be 22kV and the output will be 220kV.

Another transformer is called the ideal transformer whose input voltage is equal to the output voltage.

#### 1 COMMENT

1. In the article above you called both examples step-up, I believe you meant to state “step-down” on first example instead of the following:
Generally, if the transformer is mentioned by 11kV/415V means, it is called step-up transformer, the input will be given as 11kV and the output will be connected to 415V.

Keep up the good info.
V/r,

Denny Cohenour