The article in the March 3 issue of The News dealt with the secondary windings of a Delta service transformer with one winding center-tapped to the ground. The article stated that the power-leg or ...

A thorough understanding of Delta and Wye service transformers, their primary and secondary windings, and their windings’ voltages, will help HVACR service technicians in their understanding of ...

When alternating current (AC) prevailed over direct current (DC) in the late 1800s, one of the deciding factors was the need for voltage levels to be raised and lowered throughout the power system to ...

It seems that no matter how many times our experts address the topic of triplen, there's always another facet of this disruptive harmonic current to be discussed. This month, Editorial Director John ...

The WA 2293 is a winding analyzer that is optimized for testing three-phase power and distribution transformers. This test set uniquely combines winding resistance measurement, transformer turns ratio ...

Power Integrations has released Version 2.3.5 of its PI Expert Online power supply design software. It now features support for a secondary with parallel windings in the transformer construction ...