Excessive line voltage variations to a PLC installation can be corrected by installing a:
A)constant voltage transformer.
B)step-down transformer.
C)step-up transformer.
D)current transformer.

Question

Quizplus · Accepted Answer

A constant voltage transformer is designed to maintain a stable output voltage level even when the input voltage fluctuates. This makes it an ideal solution for correcting excessive line voltage variations in a PLC installation. Step-up and step-down transformers are not designed for voltage stabilization, and a current transformer does not affect voltage levels.

Excessive Line Voltage Variations to a PLC Installation Can Be