Following motor is used where high starting torque and wide speed range control is required.
Following motor is used where high starting torque and wide speed range control is required.
April 2022
Speed control by Ward Leonard method gives uniform speed variation
Speed control by Ward Leonard method gives uniform speed variation
Speed control by Ward Leonard method gives uniform speed variation Read More »
Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be
Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be
Sparking, is discouraged in a D.C. motor because
Sparking, is discouraged in a D.C. motor because
Sparking, is discouraged in a D.C. motor because Read More »
Which D.C. motor is generally preferred for cranes and hoists ?
Which D.C. motor is generally preferred for cranes and hoists ?
Which D.C. motor is generally preferred for cranes and hoists ? Read More »
In D.C. machines the residual magnetism is of the order of
In D.C. machines the residual magnetism is of the order of
In D.C. machines the residual magnetism is of the order of Read More »
The condition for maximum power in case of D.C. motor is
The condition for maximum power in case of D.C. motor is
The condition for maximum power in case of D.C. motor is Read More »
For which of the following applications a D.C. motor is preferred over an A.C. motor ?
For which of the following applications a D.C. motor is preferred over an A.C. motor ?
For which of the following applications a D.C. motor is preferred over an A.C. motor ? Read More »
The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is
The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is