In order to operate the bypass switch on a voltage regulator, the tap changer must be in which position?

To operate the bypass switch on a voltage regulator, the tap changer must be in the neutral position. This is crucial because the neutral position ensures that the voltage regulator is stable and not actively adjusting voltage levels when the bypass switch is engaged. By having the tap changer in neutral, it minimizes any potential disturbances or fluctuations that may occur in the electrical system during the switching process.

When the tap changer is in the neutral position, this means it is not causing any changes in voltage regulation. This stability is necessary for safely bypassing the regulator, allowing for maintenance or testing without interfering with the overall system's voltage. Engaging the bypass switch in any other position could lead to unexpected voltage swings or equipment malfunctions, as the regulator might still be trying to adjust the voltage while the bypass is initiated.