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
Love Is a Four Letter Word (album) from the album, on February 4, 2013. Love Is a Four Letter Word (album) Love Is a Four Letter Word is the fourth studio album by the American singer-songwriter Jason Mraz, released on April 13, 2012, by Atlantic Records. "I Won't Give Up" was released as the album's first single on January 3, 2012. In November 2009, Mraz posted on his MySpace page plans for a new album to be recorded starting in December, writing, "In 2 weeks time I will enter the studio and begin recording the next album. Only a handful of songs are written and slated but