Top 5 differences between kW and kVA

kW and kVA are units of power. kW stands for kilo-watts and kVA stands for kilo-volts ampere. Let's see what is the difference between kW and kVA and how to…

Amps to kVA | Amperes to kVA converter

Transformers, alternators, UPS and power supplies are rated in kVA. kVA stands for kilo-Volt-amperes. As the name indicates, it is one kVA is equal to 1000 volt-amperes. Here is an…

kVA to Amps | kVA to Amperes converter

Kilo-volt-amperes (kVA) and ampere are the units of two different parameters of electricity. While the former quantifies the amount of apparent power that can be supplied by the power source,…

What is kVA?

kVA stands for kilo volt-amperes. It is basically the unit of apparent power and is the product of RMS values of voltage and current. One kVA is 1000 volt -…

Transformer kVA calculator – Based on load

Whenever the available AC source voltage differs from the load voltage, we use transformers to increase or decrease the voltage levels. The calculation of kVA rating is crucial while sizing…

Transformer noise (Humming sound of transformers)

Noise is an unpleasant, unwanted and annoying sound. Transformer noise, quite commonly known as the ‘humming sound or buzzing sound’ of transformer, is one of the major problems with large…

Open circuit test & Short circuit test in transformers

Open circuit test and short circuit test are conducted to determine the core loss, copper loss, and equivalent circuit parameters of a transformer. In this article, in addition to the…

Equivalent circuit and Phasor diagram of a transformer

In order to understand the equivalent circuit of a transformer, we suggest you read Ideal transformer first and then come back and continue from this point. What is an equivalent…

Ideal Transformer

A transformer is an AC device used to step down or step up voltages. To visualize the current flow and other circuit properties of a transformer, certain assumptions are made,…

An overview of Electric Machines

Electricity does not exist naturally in any useful form. It has to be generated from any other sources of energy such as solar, wind, hydro, thermal, atom, etc. Photovoltaic cells…