Armature current and the field current is proportional to the relationship, but is proportional to a certain extent, due to the saturation magnetic flux, excitation current would increase is not possible, but also to limit the micro-slip ring armature current is increased (in fact, the same armature and excitation problems exist saturated magnetic flux).
DC motor brushes on the commutator pressure was what requirements? Whether the brushes on the slip rings sparkle, if sparks small brush should be cleaned; slip ring brushes if sparks big deal by maintenance personnel. On the brush pressure should be no sparks when the minimum pressure is no brush in the brush holder Huangdong and jamming of the brush and brush holder gap maintained between 0.1mm ~ 0.2mm. Soft wire brush should be complete, close contact, no short circuit and shell. Brush edges should be no wear and tear, such as brushes worn to 2 ~ 4mm from copper braids, should be replaced with the same species of brush, because different varieties of brushes conductivity and cross sections of different sizes, the vibration causes the brush. Brush and brush holder shall be free of fouling, if fouling, application brush or hair dryer blowing clean.
DC motor, a large current DC power through the electrical slip rings brush holder fixed to the armature winding of the input rotation, the armature windings corresponding to the pole in the inner conductor, the current direction is always maintained constant, in order to maintain continuous rotation of the rotor. The DC generator, the commutator and the brush is the role of the armature windings of alternating into direct current potential output.
JINPAT Electronics is a leading manufacturer in industrial slip rings. We commit ourselves to the development, designing and manufacturing of different types of high quality slip ring assembly for a vast variety of applications. We provide standard products as well as customized products according to your needs. We have also collaborated with Consortium of Industry including Military Industry and Universities in China.