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Electric Field Prediction for a Human Body-Electric Machine System

Ioannides M. G., Papadopoulos P. J., Dimitropoulou E.

International Journal of Occupational Safety and Ergonomics

2004

Vol. 10, No. 1

87--100

A system consisting of an electric machine and a human body is studied and the resulting electric field is predicted. A 3-phase induction machine operating at full load is modeled considering its geometry, windings, and materials. A human model is also constructed approximating its geometry and the electric properties of tissues. Using the finite element technique the electric field distribution in the human body is determined for a distance of 1 and 5 m from the machine and its effects are studied. Particularly, electric field potential variations are determined at specific points inside the human body and for these points the electric field intensity is computed and compared to the limit values for exposure according to international standards.