How do you measure Input high voltage?

Answer:
You can measure high voltage by using Potential Transformer (PT). or by using utility meter or power manager.
ANSWER: Adding a hi resistance in series with a low resistance and measuring that voltage drop. If the resistance is known then current is determined and the source can be calculated. transformers do not work well with DC,
First answer by Shevatesagar30. Last edit by LIBURNO. Contributor trust: 141 Question popularity: 34 [recommend question].