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
Lady is a Four Letter Word Lady is a Four Letter Word Lady is a Four Letter Word is a Canadian current affairs television series which aired on CBC Television in 1975. This Ottawa-produced series on women's issues was hosted by Elizabeth Gray with announcer Bob Carl. Topics such as home and workplace, marriage and singleness were featured. A highlight of the series was that persons deemed sexist were written on an "honour roll" of toilet paper. This half-hour series was initially aired locally from 20 January 1975. It was broadcast on the national network Fridays at 1:00 p.m. (Eastern) from 11 April to 30 May