What is the voltage rating of each step on a step regulator?

Each step on a step regulator is typically rated at 5/8% of the voltage. This value is significant in the context of voltage regulation and control. Step regulators are used to maintain consistent voltage levels in power distribution systems by adjusting the voltage up or down in predetermined increments as system demands fluctuate.

When the voltage level rises above a setpoint, a step regulator decreases the voltage output in 5/8% increments to stabilize the system. Conversely, if the voltage is too low, the regulator can increase the voltage by the same increment. This fine control helps ensure that the various loads supplied by the regulator receive a steady and appropriate voltage, which is crucial for the effective operation of electrical equipment and for maintaining overall system reliability.

The other options suggest different increment values, but they do not align with the standard practice in the industry for step regulators.