Circle diagram Circle diagram First conceived by A. Heyland in 1894 and B.A. Behrend in 1895, the circle diagram is the graphical representation of the performance of the electrical machine drawn in terms of the locus of the machine's input voltage and current. The circle diagram can be drawn for alternators, synchronous motors, transformers, induction motors. The Heyland diagram is an approximate representation of circle diagram applied to induction motors, which assumes that stator input voltage, rotor resistance and rotor reactance are constant and stator resistance and core loss are zero. Another common circle diagram form is as described in the two
Dividing a circle into areas solving the problem. By employing an inductive proof, one can arrive at a formula for "f"("n") in terms of "f"("n" − 1). In the figure you can see the dark lines connecting points 1 through 4 dividing the circle into 8 total regions (i.e., "f"(4) = 8). This figure illustrates the inductive step from "n" = 4 to "n" = 5 with the dashed lines. When the fifth point is added (i.e., when computing "f"(5) using "f"(4)), this results in four new lines (the dashed lines in the diagram) being added, numbered 1 through 4, one for each point that