An Apparatus for Automatic Measuring the Errors of Mutual Inductors with Actual-Burden Based on the Programmable Three-phase Power Supply

摘要

The apparatus measuring the errors of mutual inductor with its actual burden load based on three-phase power supply is introduced. The programmable three-phase power supply generates two or three phase signal whose amplitude and phase angle can be adjusted by program. By using it an environment of actual burden load is simulated completely. So the measuring of mutual inductors with actual burden load is made precisely. The measuring principle of this apparatus and the hardware and software design of the apparatus are discussed in the paper.