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Diagnostics of commutator DC motor basing on spectral analysis of signals

Głowacz Z., Zdrojewski A.

Electrical Power Quality and Utilisation. Journal

2008

Vol. 14, iss. 1

85--88

Measurement investigations have been carried out for commutator dc motor with internal asymmetries. Construction of considered motor enables to realize the breaking of one rotor coil and shorting of two groups of rotor coils. Each group contains three rotor coils. The basis of study were signals: current and voltage of field winding, current and voltage of armature winding and velocity of the rotor. The presented in this paper results of spectral analysis of signals create new possibilities for diagnostics of commutator dc motor.