Articles

Excerpted from Turbomachinery Publications by J.S. Sohre

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Electromagnetic Shaft Currents

Publication No. 20

“Electromagnetic Shaft Currents and Demagnetization on Rotors of Turbines and Compressors”, by J.S. Sohre & Paul I. Nippes, presented December 1978 at the 7th Turbomachinery Symposium, Texas A&M University, College Station, Texas (21 pages, 20 figures). First revised reprint. (Note: This is a detailed description).

Publication No. 23

“Are Magnetic Currents Destroying Your Machinery?” Hydrocarbon Processing, April 1979. Pages 207-212. Edited excerpts from reference 20. (Note: This is an introductory presentation).

Publication No. 24

“Electromagnetic Shaft Currents in Turbomachinery—An Update”. Part I:”Status Review and Shaft Brush Development”, by J.S. Sohre. Part II:”Magnetics and Demagnetization, by Paul I. Nippes. Presented at the 25th Symposium, “Safety in Ammonia Plants and Related Facilities”‘American Institute of Chemical Engineers, Portland, Oregon, August 1980 (48 pages). (Note: This is a continuation of reference 20).

Publication No. 29

“Shaft Currents in Rotating Equipment, Electromagnetic and Moving Particle Induced”, an informal review of literature, 1971. 22 pages.

Publication No. 30

“Electromagnetic Shaft Current Control “, Original (unedited) version of Panel Discussion presented at the 10th Turbomachinery Symposium, Including presentation by Nippes, Sandner, Sutherland, and Sohre. (43 pages, 17 figures).

Shaft Brushes

Publication No. 20b

“Shaft-Grounding Brush for High Shaft Surface Velocities”, (7 pages). Outline drawings, installation drawings.

Publication No. 28

Shaft Brush Instruction Book, outline drawing, installation drawing.

Publication No. 37

“Shaft Riding Brushes to Control Electric Stray Currents”, by John S. Sohre, PE, Life Member ASME, President of Sohre Turbomachinery® Inc. Addendum, 1995: “Electrically Induced Currents on Large Generating Units”. Condensed notes for presentation at the panel discussion of the 1995 summer meeting of the IEEE (Institute of Electrical and Electronic Engineers), Portland, Oregon, USA, July 25, 1995.

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