Mark to indicate third party approved or self-certification to European Community requirements.
Canadian Standards Association. The Canadian equivalent of Underwriter’s Laboratories (UL).
Mark to indicate UL certification to CSA standards.
Same as Centigrade. To convert Centigrade to Fahrenheit, use the following formula: °F = 1.8 x °C + 32.
A number of turns of conductor wound as a coil.
A transformer with a turns ratio which provides a higher rated voltage at no-load and rated voltage at rated load. Normally used on units rated 2 kVA or smaller.
The service requirement that demands operation at a constant load for an indefinite period of time.
The load that a transformer can handle indefinitely without exceeding the specified temperature rise.
Usually referred to as an Industrial Control Transformer. Designed for good voltage regulation characteristics when low power factor and/or large inrush currents are drawn (5 to 15 times normal).
Losses in the transformer winding that are incidental to the carrying of the load. These losses include those due to resistance as well as to stray and eddy currents.
The steel that carries the magnetic flux in a transformer.
Losses caused by a magnetization of the core and its resistance to magnetic flux.
One complete sequence of values of an alternating quantity, including a rise to maximum in one direction, a return to zero, a rise to a maximum in the opposite direction, and a return to zero.