WebNow in general practice, when the motor is in its running condition, and the supply voltage is constant and the shunt field current given by, Thus the …
300+ TOP D.C. MOTORS Multiple Choice Questions and Answers DC Motor …
WebOct 12, 2024 · It will result in a reduced speed of the motor. When the load is reduced or no load is given, the flux will be less but the speed will be dangerously high. Hence, a series motor should never be started without some mechanical load on it. ... The torque-speed characteristics of the DC shunt motor are drawn from the above two characteristics. Web1 day ago · The field winding in shunt DC motors is made of many windings of thin wire, to both increase the magnetic field’s strength and limit the current through the coil. By doing … controversy song prince
Separately Excited DC Motor: Example & Problem (PDF & PPT)
WebWhat will be the effect of opening of field of a DC shunt motor while motor is running? a. The speed of motor will be reduced: b. The armature current will reduce: c. ... Speed will increase in proportion to reduction in load: c. Speed will remain almost constant: d. Speed will reduce: View Answer Report Discuss 50-50! Answer: (c). WebShunt motors self-regulate (when driven by constant voltage). If the load drops, speed increases => back EMF increases => current lowers => torque lowers => speed no longer increases. Current through each motor in the string is the same, so one affects the other. WebIn a DC-shunt motor, explain the series of events that will follow if due to a fault, A) the armature resistance will be reduced by %50 (20 points). B) the armature resistance will be increased by %70 (20 points). C) the armature resistance … controversy surrounding balenciaga