**Contents**show

## What are the factors that affect the secondary voltage of a transformer?

**Let’s name these ten factors:**

- Kilovoltampere (kVA) Rating.
- Voltage Ratings, Ratio, and Method of Connection (Delta or Wye)
- Voltage Taps.
- Typical Impedance Values for Power Transformers.
- Insulation Temperature Ratings.
- Insulation Classes.
- Sound Levels.
- Effects of Transformer Failures.

## Which are the factors that influence voltage and current in transformer?

The amount of the exciting current is determined by three factors, which are all controlled by transformer action: The amount of voltage applied. **The resistance of the primary winding’s wire and core losses**. The inductive reactance which depends on the frequency of the exciting current.

## What causes voltage change from a transformer primary to secondary?

If a voltage is applied to the first coil, **magnetic flux will be created**. If the magnitude of the applied flux changes, then the flux being generated will also change. This changing flux will link the primary and secondary coil and induce a voltage across the secondary windings.

## What are the factors affecting voltage?

The three factors, **Surface area, Concentration and Temperature**. Each of these factors will be explored to see how they affect the current generated by the cell.

## Which factor that affect the primary voltage level selection?

There are some factors affecting the decisions for selecting the voltage levels of the primary feeders, such as load projection, **voltage drops, feeder lengths**, sub-transmission voltage, power losses, equipment availability costs, adjacent substation and feeder voltages, company policies, etc.

## What is a transformer ratio?

The transformer turns ratio is **the number of turns of the primary winding divided by the number of turns of the secondary coil**. The transformer turns ratio provides the expected operation of the transformer and the corresponding voltage required on the secondary winding.

## Which factor mainly influence the voltage regulation of a large transformer?

1)**Amount of current drawn by the load from the transformer** i.e Loading on the transformer. 2) Power factor of the load.

## How do you find the primary and secondary current of a transformer?

In other words, **i1/i2 = V2/V1**. For example, if the current and voltage drop through the secondary coil is 3 amps and 10 volts, and the voltage drop through the primary coil is 5 volts, then the current through the primary coil is 10/5 * 3 = 6 amps. So the secondary has less voltage and more current.

## What determines the voltage of a transformer?

**The ratio of input windings to output windings** will determine the output of the transformer. … Divide the number of secondary windings by the number of primary windings, and multiply the source voltage by this ratio. This will give you the output voltage.

## What causes secondary voltage?

Secondary voltages are provided by **distribution transformers that are connected to the primary system**, which are usually associated with utilization voltages.