What is meant by Phantom Loads?
During meter testing, it is easy to obtain the desired test voltage from the power line. However it is difficult to generate desired test current because different current values are required, depending upon the current rating of the meter under test. A phantom load is used for this purpose. It basically consists of a special loading transformer that steps the line voltage to a lower value, which is then applied through loading resistors (different values for different currents) to the meter under test to produce current. This concept is used by the Meter manufacturers for both portable phantom load set ups and test benches.
