A DC shunt motor is running at 1200 RPM when excited with 220 V dc. Neglecting the losses and voltage drop of the motor when connected to a 175 V supply is
Excessive sparking at the brushes may be caused due to
Excessive sparking at the brushes may be caused due to Read More »
The greatest percentage of power loss in a d.c. motor is due to ………………..
The greatest percentage of power loss in a d.c. motor is due to ……………….. Read More »
A motor takes a large current at starting because
A motor takes a large current at starting because Read More »
The iron losses in a d.c. motor depends upon ………………..
The iron losses in a d.c. motor depends upon ……………….. Read More »
The various losses in a d.c. the machine, whether it is a motor or a generator, is categorized amplified into three groups as
……………….. motor is most suitable for punch presses
……………….. motor is most suitable for punch presses Read More »
A cumulatively compounded motor does not run at dangerous speed at light loads because of the presence of
The friction and windage losses in a d.c. motor depends upon ………………..
The friction and windage losses in a d.c. motor depends upon ……………….. Read More »
