The anomalous behavior of the moving systems of single-phase A-C watt-hour meters at no load

Investigation reveals the moving systems of induction watt-hour meters to be in a peculiar state of motion under the condition of potential excitation only. The present paper offers a simple explanation for its origin and provides a method for recording and determining the actual value of the motion in various parts of the moving system. Interesting conclusions may be drawn from the investigation which throw much light on the problem of meter-bearing performance.