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
Into a Circle March 1988, and reached No. 5 in the chart. Into a Circle embarked on their final tour in September 1989, with Annie Anxiety joining the line-up on backing vocals. The band broke up in October 1989. Hampshire is a member of Thailand-based band Futon, alongside Simon Gilbert (Suede). Jepson later worked as a concert promoter and currently teaches live sound and tour management at the Brighton Institute of Modern Music. Into a Circle Into a Circle (also as In Two a Circle and In2a0) were an English new wave duo, formed in April 1985 by Paul "Bee" Hampshire and Barry