Method of and apparatus for testing and adjusting d.c. rotary ma

Details Method of and apparatus for testing and adjusting d.c. rotary ma Method of and apparatus for testing and adjusting d.c. rotary ma

1994-08-19

1996-04-16

Karlsen, Ernest F.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324545, 340648, G01R 3134

Patent

active

055086330

ABSTRACT:
Apparatus may be inserted in the casing of a d.c. motor or a d.c. generator for measuring not only the magnetic fields prevailing in the machine but developing other useful information. The magnetic fields between the field poles and the armature, and also the armature/mmf fields aligned with the brushes may be measured. The measurements of the fields permits a complete plot of the fields in the machine and also permits a test to be performed to see if the brushes are at their optimum positions. If a brush is not at its optimum position, the brush may be shifted back and forth until the maximum mmf, due to the current through the armature is aligned midway between the leading and trailing ends of the brush area coverage on the commutator.

REFERENCES:
patent: 2752568 (1956-06-01), Ward
patent: 4342960 (1982-08-01), Sawada
patent: 4658213 (1987-04-01), Finley
patent: 5132602 (1992-07-01), Jorgensen et al.
Fowle, Standard Handbook for Electrical Engineers, pp. 892 to 899, (1933), published by Mc-Graw Hill Book Co., Inc., New York, N.Y.
NAVSEA S9310-AC-HBK-010, Commutator/Slip Ring Maintenance Handbook, pp. 4-28 to 4-34, Aug. 1985, published by U.S. Navy, Washington, D.C.
IEEE GUIDE: Test Procedures to Direct Current Machines, pp. 7 to 39, Aug. 1985, published by The Institute of Electrical and Electronic Engineers, Inc., 345 East 47th Street, New York, N.Y. 10017.

Affiliated with

Also associated with

Rating

Method of and apparatus for testing and adjusting d.c. rotary ma does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and apparatus for testing and adjusting d.c. rotary ma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for testing and adjusting d.c. rotary ma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-327819