What is the low side coil voltage for the (12470GrdY/7200-120/240) 167 Kva transformer?

The low side coil voltage for a transformer rated at 12470GrdY/7200-120/240 is identified by examining the transformer's rating specification, specifically the secondary side voltage. In this case, the designations after the slash indicate the voltage levels available on the low voltage side of the transformer.

In the designation "120/240," the "120 volt" refers to the single-phase output voltage that can be tapped from the secondary winding. The "240 volt" indicates a higher voltage option that can be obtained by connecting two of the 120-volt outputs in series. Therefore, the most fundamental low-side voltage available directly from the transformer is 120 volts.

This understanding is crucial in situations where device compatibility or system design requires knowledge of distribution voltages. It helps ensure that transformers are properly utilized within their specified voltage outputs for residential or commercial applications. In this scenario, the focus on the 120 volt tap reflects standard low voltage service used in many utility applications.