What is the output voltage from a 120/240V-16/32V Group II transformer with proper connections and an input voltage of 240 volts, for a control panel that needs 208 volts?

To determine the output voltage of a 120/240V-16/32V Group II transformer when provided with an input voltage of 240 volts, it's essential to understand how transformers operate and how they handle different input and output voltages based on their configuration.

In this scenario, the transformer can be considered a step-down transformer, as it operates at a primary voltage that is higher than the maximum rated secondary voltage. Given that the transformer is set for configurations of both 120V and 240V on the primary side, the operation at 240V allows you to derive different secondary voltages.

For a secondary side configured for a lower voltage like 16V or 32V, the transformer can be used to derive voltages in between these values through proper tapping, and can also accommodate different needs based on the configuration. When you apply 240V input, the output voltage can be proportioned by the turns ratio of the transformer, which in this case influences how much of the input voltage is transformed to output.

The control panel requires 208 volts, and upon examining the transforms and their characteristics, the output that results from the proper connections and settings of the transformer lands at approximately 212 volts as the closest match to the required