[amp_mcq option1=”shunt motor” option2=”series motor” option3=”A. shunt motor B. series motor C. compound motor” option4=”separately excited motor” correct=”option1″]<\/p>\n
The correct answer is: A. shunt motor.<\/p>\n
A repulsion induction motor is a type of electric motor that uses both repulsion and induction principles to produce torque. The stator of a repulsion induction motor is similar to that of a standard induction motor, with a three-phase winding that is energized by an alternating current source. The rotor of a repulsion induction motor, however, has two windings: a primary winding and a secondary winding. The primary winding is connected to the stator winding, and the secondary winding is short-circuited.<\/p>\n
When the motor is turned on, the alternating current in the stator winding creates a rotating magnetic field. This magnetic field induces a current in the rotor winding, which in turn creates its own magnetic field. The interaction of these two magnetic fields produces torque, which causes the rotor to turn.<\/p>\n
The speed of a repulsion induction motor is determined by the frequency of the alternating current source and the number of poles on the stator. The torque of a repulsion induction motor is determined by the current in the rotor winding.<\/p>\n
The speed-torque characteristic of a repulsion induction motor is similar to that of a DC shunt motor. In both cases, the speed increases as the load torque decreases. However, the speed-torque characteristic of a repulsion induction motor is not as linear as that of a DC shunt motor. This is because the secondary winding of a repulsion induction motor has a small amount of resistance, which causes the speed to drop slightly as the load torque increases.<\/p>\n
The other options are incorrect because they do not describe the speed-torque characteristic of a repulsion induction motor. A series motor has a speed-torque characteristic that is the opposite of that of a repulsion induction motor. The speed of a series motor decreases as the load torque increases. A compound motor has a speed-torque characteristic that is somewhere in between the speed-torque characteristics of a shunt motor and a series motor. The speed of a compound motor decreases as the load torque increases, but the decrease is not as pronounced as it is for a series motor. A separately excited motor has a speed-torque characteristic that is independent of the load torque. The speed of a separately excited motor is determined by the voltage applied to the stator winding.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”shunt motor” option2=”series motor” option3=”A. shunt motor B. series motor C. compound motor” option4=”separately excited motor” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[968],"tags":[],"class_list":["post-56860","post","type-post","status-publish","format-standard","hentry","category-single-phase-induction-motors","no-featured-image-padding"],"yoast_head":"\n