Inter-turn short-circuits, turn to earth short-circuits and open winding, among other fault conditions, can result from the field poles manufacturing and insertion inside the stator. The main problem with these kinds of faults is that though the motor is likely to be operational, there is a ...
Drive equipment supplied with direct current, which includes a DC motor with a series field winding and with a semi-conductor rectifier arrangement in parallel with the field winding and working in pulse operation for variable shunting o... S Elvin - US 被引量: 20发表: 1977年 Analysis and ...
Noun1.field winding- the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine field coil coil- reactor consisting of a spiral of insulated wire that introduces inductance into a circuit ...
The Coyle winding structure of a DC motor for a vehicle according to the present invention isCover assemblyA yoke assembly 30 having a plurality of excitation poles 32 disposed between the cover assembly 10 and the lower housingAn armatu... チェ ジンウォン,チェ チョルウォン 被引量: 0...
performanceofthemotor.37.1.2WorkingPrincipleofThree-phaseIMThestatorisathree-phasesymmetricalwinding,anditsstructureisthesameasthatofathree-phasesynchronousmotor.Atthesametime,therotorisalsoequivalenttothree-phasesymmetricalwindingsa-x,b-yandc-z,andtheyareshort-circuited,thusformingabasicthree-phaseinductionmotor...
A DC motor drive for the armature and associated field winding of the motor includes an armature feedback loop responsive to the current flow in the armature, an input command signal such as a speed c
Comparison of output characteristics of a permanent-magnet and a field-winding DC starter motor The influence of magnetic saturation on electromagnetic field distribution in both permanent-magnet direct-current (PMDC) and field-winding (wound-field) d... MR Hassanzadeh,A Kiyoumarsi,A Jani-Ghorbaan...
A stator (2) winding (1) has a small terminal block (4) connected to it and a thermally operated switch (7) mounted directly on it. The terminal block carries three terminals (5) between two of which the thermal switch is connected. External connection can be made so that the switch ...
A controller of a field winding type synchronous motor is provided that can stably output torque even if the d-axis current pulsates by reducing torque pulsation without causing fluctuation in the magnetic flux acting on the torque. A motor control unit performs control so that a desired torque...
Until recently, power plant operators have had very limited options for on-line monitoring of the health of motor and generator rotors, particularly those with brushless excitation systems. Degradation of field winding insulation can lead to ground faults or shorted turns, with ...