What is the standard polarity of a 7200 volt transformer that is less than 200 KVA?

The standard polarity for a 7200-volt transformer that is less than 200 kVA is additive. When dealing with transformers, polarity is critical as it indicates the phase relationship between the primary and secondary windings. An additive polarity signifies that when you connect the high voltage side (primary) and low voltage side (secondary) with the same phase, the voltages effectively add together when measured at those points.

This additive characteristic is particularly common in single-phase transformers and many three-phase transformers, where it simplifies the connection and operation of transformers in grid systems. Understanding the polarity is vital for ensuring that transformers are connected appropriately to prevent issues such as circulating currents or phase mismatches.