**Contents**show

## What is the transformer equation GCSE?

The transformer equation – Higher

V _{p} is the potential difference in the primary (input) coil in volts (V) V _{s} is the potential difference in the secondary (output) coil in volts (V) N _{p} is the number of turns on the primary coil. N _{s} is the number of turn on the secondary coil.

## What is the transformer calculation?

Transformer Formulas

The transformer calculator uses the following formulas: Single Phase Transformer Full-Load Current (Amps)= kVA × 1000 / V. Three Phase Transformer Full-Load **Current (Amps) = kVA × 1000 / (1.732 × V)**

## How do I calculate KVA?

Use the formula: **P(KVA) = VA/1000** where P(KVA) is power in KVA, V is voltage and A is current in amperes. For example, if V is 120 volts and A is 10 amperes, P(KVA) = VA/1000 = (120)(10)/1000 = 1.2 KVA.

## How do you calculate the power of a transformer?

**Input and output power**

- Electrical power is calculated by multiplying voltage (in volts) by current (in amps).
- If a transformer is 100% efficient, then the input power will equal the output power. …
- V
_{P}is input (primary) voltage. - I
_{p}is input (primary) current. - V
_{s}is output (secondary) voltage.

## Why is the transformer rated in kVA?

**The copper and iron are the two types of losses that occur in the transformer**. The copper loss depends on the current (ampere) flows through the windings of the transformer while the iron loss depends on the voltage (volts). i.e., the rating of the transformer is in kVA.

## What is a transformer symbol?

A schematic diagram is a graphical representation of an electrical or electronic circuit. … Dot convention markings use dots on the transformer schematic symbol as a way of specifying the winding direction between input and output and therefore the polarity between windings.