Repair capacity the economy electromechanical during riveting equipment DC governor, the main tools in addition to the common multimeter, oscilloscope, logic analyzer, signal generator and other auxiliary maintenance equipment, and most importantly, is inseparable from the engineers rich experience in maintenance technology. A common riveting equipment DC governor maintenance characteristics: governor voltage space vector / SVPWM based on the three-phase the whole waveform born effect for condition, ideal circular rotating magnetic field trajectory Channel Pro motor air gap for the purpose of one born three phase modulation waveform, cut polygon forced Pro-round control. Then improved by practice use, that is, the introduction of the frequency compensation can eliminate the error of speed control; estimation of the magnitude of the flux through feedback to eliminate the impact of low speed stator resistance; the output voltage, current, closed-loop, advances in dynamic accuracy and not arbitrary degree. Second, the the riveting equipment DC governor maintenance control mode: 1, constant torque characteristics: general use curves like straight running conveyor belt, and speed has nothing to do constant torque use spaces; 2, decreasing torque characteristics: like fans, pumps as speed was 2 power relationship between the load occasions, the use of such curves; 3, high starting torque: between the governor and the motor wiring interval is longer (about 100m), the startup output torque ( lift load), at the input or the output of the governor AC reactor insert, running the motor less than the maximum combined motor; 4, a constant output power to run its running curve: frequencies above 50Hz, 50Hz or more constant voltage . Yung economic electromechanical the riveting equipment DC governor repair business is built on the basis of mutual trust with our customers, and strive for technical excellence, and has always been safe and reliable products for the repair is completed. Yung economic maintenance of the governor, is the choice of customers trusted.