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
Lady is a Four Letter Word 1975. 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