Each tap of a step regulator is typically rated at which percentage?

The correct answer is that each tap of a step regulator is typically rated at 5/8%. This rating reflects the standard incremental adjustment made by step voltage regulators when responding to fluctuations in power demand on the electrical grid.

These regulators play a crucial role in maintaining voltage levels within acceptable limits across the distribution network. The 5/8% tap change ensures a balance between fine adjustments to voltage and the need to avoid excessive or frequent changes that could destabilize the electrical system.

Using a fractional percentage like 5/8% allows for a moderate and manageable response to varying loads while ensuring that the voltage stays within an optimal range for consumers and electrical equipment. This precision is beneficial for providing quality service and protecting infrastructure from voltage spikes or dips.

This understanding of step regulators is vital for linemen, as they often work directly with equipment that regulates voltage delivery and must be familiar with the specifications and operational characteristics.