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
Happiness Is a Four-letter Word "Trumbo". It was ranked at number 3 on the Top 10 after "Deadpool" and "Vir Altyd". Mario Dos Santos, CEO of Ster-Kinekor Entertainment, said: "The opening weekend's results for the film are simply overwhelming not only from local content perspective but also in comparison to Hollywood content." Happiness Is a Four-letter Word received critical acclaimed from its critics. The movie received a 97% approval rating from Metacritic. Happiness Is a Four-letter Word Happiness is a Four-letter Word is a 2016 South African romantic drama film directed by Thabang Moleya and written by Busisiwe Ntintili. Based on the novel of the