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
Capital Circle Capital Circle Capital Circle is a circular road surrounding Capital Hill in the centre of Canberra, Australia's capital city. It is one of three concentric roads on the hill, with State Circle the outermost and Parliament Drive the innermost. There are no buildings on Capital Circle. Parliament Drive surrounds New Parliament House. Roads named for each of Australia's state capitals converge at Capital Circle or State Circle. The main roads leading from the circle are Commonwealth Avenue to the north and Canberra Avenue and Adelaide Avenue to the south. Capital Circle is a three-lane road. All traffic runs in a