What is the configuration of a Control Transformer with Dual Voltage Primary and Single Voltage Secondary?

• A. Control Transformer Dual Voltage Primary, Single Voltage Secondary
• B. Thermal Switch N.O.
• C. Timed Contact N.C.T.O.
• D. Battery

Answer: (A)

The configuration of a Control Transformer with Dual Voltage Primary and Single Voltage Secondary is correctly described as having a dual voltage capability on the primary side while maintaining a single, consistent voltage on the secondary side. This means that the transformer can accept two different primary voltage inputs but will always output one specific voltage, which is crucial for the safe and effective operation of control circuits.

This design allows for flexibility in powering equipment that may operate at different voltage levels depending on the system requirements or local configurations. The ability to adjust to two voltages on the primary side offers versatility in installation and operation, making it suitable for a variety of applications where voltage levels may vary.

The other options do not align with the specific function or structure of a control transformer. A thermal switch refers to a device that opens or closes its contacts based on temperature, while a timed contact relates to a switch that operates on a timer. A battery provides direct current power without the localized voltage adjustments that a transformer provides. Thus, the chosen answer accurately represents the configuration outlined in the question.