1) Apparent Power expressed in Thousand Volt-Amps. 2) Kilovolt Ampere rating designates the output which a transformer can deliver at rated voltage and frequency without exceeding a specified temperature rise. Found on http://www.youngco.com/young2.asp?ID=4&Type=3
Kilovolt-ampere, or thousand volt-ampere. When multiplied by the power factor, will give kilowatts, or KW. Found on https://www.encyclo.co.uk/local/21687