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Our transformer sizing calculator allows you to obtain the minimum single or three-phase transformer size required based on the load you need to power. If you need a device that converts from different voltages so it can power another device, then a transformer will fulfill that role perfectly.
Standard KVA sizes are shown on the left margin, Standard Line-to-Line Voltages are shown along the top margin. Chart Example: Using the numbers from the earlier Three Phase Transformer Example V=208, I=175. Use the chart titled "Three Phase Low Voltage Dry Type Transformers".
Transformers are sized by determining the total load required (in amps). Transformer capacity is rated in KVA (kilo-volt-amperes). The load voltage and load amps must be known to calculate KVA rating. * NOTE: We do not recommend loading a transformer above 80% of its KVA rating.
Here is a simple transformer sizing calculator, that can help you determine the required kVA rating of a transformer for a given load. Transformer size is calculated based on load voltage and load current.
Transformer Load expressed in kVA: Select the appropriate size from the selection charts. Be sure to select a transformer kVA rating equal to or greater than the anticipated con-nected load. Transformer Load expressed in wattage: Convert wattage into a kVA rating by using the formula listed below.
This free online transformer calculator allows you to calculate the full load current in the primary and secondary transformer windings. The inputs are the transformer kVA (power), and the voltage in the primary and secondary windings.
Our transformer size calculator can find the right transformer size (single or three-phase) for any load you require! Within this short text, you will learn: The working principle of transformers; How to size a single-phase transformer; How to calculate transformer size for a three-phase transformer; and; More!
This chart is meant to offer recommendations only and is not an acceptable substitute for an electrical engineer.
Transformer Size Calculator. When sizing a transformer, you need to know the kilovolt-amps (KVA) that your machine requires. This tool will allow you calculate the KVA that you need. This tool only evaluates common voltages for North America (ie. 24v, 120v, 208v, 240v, 480v, and 600v).
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