Page 42 - Electrical Equipment Handbook _ Troubleshooting and Maintenance

INTRODUCTION TO MACHINERY PRINCIPLES

INTRODUCTION TO MACHINERY PRINCIPLES 2.15

FIGURE 2.12 A current-carrying conductor in the
presence of a magnetic field.

FIGURE 2.13 A conductor moving in the presence of a
magnetic field.
INDUCED VOLTAGE ON A CONDUCTOR MOVING
IN A MAGNETIC FIELD

A magnetic field induces a voltage on a conductor moving in the field (Fig. 2.13). The
induced voltage in the conductor is given by
e (v B) l
ind
where v velocity of conductor
B magnetic flux density
l length of conductor in magnetic field
REFERENCES

1. S. J. Chapman, Electric Machinery Fundamentals, 2d. ed., McGraw-Hill, New York, 1991.
2. A. S. Nasar, Handbook of Electric Machines, McGraw-Hill, New York, 1987.

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