Defender 3kVA Portable Transformer 110V 3000W (E203010)

Product Information

The transformer typically consists of two windings, a primary and secondary winding. Input power flows through the primary winding. The secondary winding then converts the power and sends it to the load through its input leads. A transformer’s rating, or size, is its power level in kilovolt-amperes.

A three-phase transformer can take one of a few different forms. It typically has three lines of power, where each line is out of phase with the other two by 120 degrees. In the example above, you would multiply 150 by 50 to get 7,500 and then divide that number by 1,000 to get 7.5 kilowatts.

Thanks you for choosing our product(s). We offer a 12 month warranty for parts and labour against any defects in components or faulty workmanship in manufacturing. Remember that every transformer has a primary and secondary side. In many cases, you’ll want to calculate the primary voltage, which is the voltage the transformer receives from a power source.

We manufacture custom built transformers for a variety of applications. Our technical team can design and build transformers for unique applications. Our transformer technicians drive us to the forefront of transformer design and manufacturing in the UK. We are an independent British company offering world class transformer solutions. kVA stands for Kilovolt-Ampere and is the rating normally used to rate a transformer. The size of a transformer is determined by the kVA of the load. In many circumstances the power required by the load is equivalent to the rating of the transformer expressed in either VA or kVA. For example a 1KW (1000 Watts) load would require a 1kVA transformer @ unity power factor.NOTE: We do not recommend loading a transformer above 80% of its KVA rating. When the KVA rating has been calculated, divide that number by 0.8 to get the minimum KVA rating needed. All values should be reviewed and confirmed by an electrician or electrical engineer. You can determine that primary voltageby using the ratios of current and voltage from the transformer’s primary and secondary coils. Maybe you know your transformer has a current of 4 amps and a voltage drop of 10 volts through its secondary coil. You also know your transformer has a current of 6 amps through the primary coil. What should the voltage drop through the primary coil be? It does not apply if damage is caused by accident, misapplication, abuse, alteration, tampering or faulty external wiring, incorrect or fluctuating power supply. The calculation for a three-phase transformer kVA is a little different from the calculation for a single-phase kVA. Once you’ve multiplied your voltage and amperage, you’ll also need to multiply by a constant — 1.732, which is the square root of 3 truncated to three decimal places: