In Ward-Leonard control the lower limit of speed is imposed by

Related MCQs

• Speed control by Ward Leonard method gives uniform speed variation
• The speed of a D.C. shunt motor more than its full-load speed can be obtained by
• The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load.The speed regulation of the motor is
• Following motor is used where high starting torque and wide speed range control is required.
• Which of the following method of speed control of D.C. machine will offer minimum efficiency ?
• Usually wide and sensitive speed control is desired in case of
• Which motor has the poorest speed control?
• For constant torque drive which speed control method is preferred ?
• Where D.C. motor of H.P. 12 or more requires frequent starting, stopping,reversing and speed control
• A transformer cannot raise or lower the voltage of a D.C. supply because