A method of detecting load tap changing transformers and voltage regulators tap postion by means of a Hall Effects rotary shaft encoder connected to the tap changing mechanism, and conveying that information to a remote location via an analog current loop interface

Electric measuring apparatus and instruments, namely, electric or electronic sensors for path-measuring, electric or electronic position sensors, electric or electronic speed detectors all for use in detecting and measuring linear, rotative or multi-dimensional movements with magnetic or electric effects