Circle diagram constant air-gap induction motor images shown here, where, The circle diagram is drawn using the data obtained from no load and either short circuit or, in case of machines, blocked rotor tests by fitting a half-circle in points O and A. Beyond the error inherent in the constant air-gap assumption, the circle diagram introduces errors due to rotor reactance and rotor resistance variations caused by magnetic saturation and rotor frequency over the range from no-load to operating speed. Steinmetz equivalent circuit Circle diagram First conceived by A. Heyland in 1894 and B.A. Behrend in 1895, the circle diagram is the
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