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 ...

One of the more popular electrical services that is supplied to medium-size commercial buildings is the Wye or Star configuration. The name comes from the transformer’s secondary winding configuration ...

Transformers are very reliable devices and can provide service for a long time if regularly maintained and serviced. They’re also the single most costly item in any substation. To protect against ...

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 ...

Cooper Power Systems has designed its full-featured differential relay, the iXP-420, to provide comprehensive two-winding transformer protection, and monitoring and control. The iXP-420 incorporates ...

For the PDF version of this article, click here. The size, performance and cost of a power electronic system are closely linked to the like parameters of the magnetic components. Since custom power ...

Magnetic components, particularly transformers operating at high frequencies and voltages, are intrinsically influenced by parasitic capacitance. This unintended capacitance between conductive ...

In the original version of this article, the second figure contained an error. The image has been updated. It’s important for engineers to have a good, working ...