How can transformer power be increased?

No it cannot increase power. A transformer is rated in Volts x Amps. Now normally this = watts but since you can connect any load to a transformer . You could connect an inductive load.

What determines the kVA of a transformer?

So if you’re working with a three-phase transformer, instead of multiplying the voltage by the amperage and dividing by 1,000 to get the kVA, you’ll multiply the voltage by the amperage by 1.732 and still divide by 1,000 to get the kVA.

What is the effect of increasing frequency on transformer rating?

When you decrease the frequency the KVA output considerably decreases and if you increase the frequency then the KVA output of the transformer will get increase. At that same time the eddy current losses and hysteresis losses increases as that of increasing frequency of the transformer.

How can we improve transformer?

The more efficient transformers require less cooling, which in turn saves more energy. According to M Vijayakumaran, no load loss and load loss are analysed separately below. He also suggests solutions to reduce these losses, leading to enhanced efficiency of transformers. No load loss is also known as core loss.

Can step up transformer increase the power level?

A step-up transformer increases voltage and decreases current, whereas a step-down transformer decreases voltage and increases current.

Why is transformer rated in kVA and not kW?

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.

Why as frequency increases the size of transformer decreases?

For given emf, if frequency is increased then flux requirement reduces hence size of transformer reduces. The higher the frequency, the less the magnetic flux of the transformer, the smaller the core section of the transformer under the same magnetic density, and the smaller the size of the corresponding transformer.

Why transformer size reduces with increase in frequency?

For a given Transformer Rating, as the frequency increases, the product of window area and cross-sectional area of the limb decreases; this means the size of the Transformer core and the amount of iron required for the core decreases.