Questions
In a universal motor, setting the brushes to the neutral plane can be done by connecting voltage to the armature, a voltmeter to the series field, and adjusting the brush position for a ___ on the voltmeter.
Minimum
When the field winding of a DC motor is connected in parallel with the armature, the motor is called?
Shunt
The consequent pole motor is essentially a ____ speed motor.
Two
When reduced voltage is applied to the armature and full voltage is maintained to the shunt field, the motor operates at _________
Underspeed
The component of a DC generator that converts the armature AC into DC is the _______
Commutator
In a motor that has a rotating magnetic field, the speed of that magnetic field is refereed to as?
synchronous speed
The output voltage of a shunt generator is set when the load is?
disconnected
When voltage is applied to the both the armature and shunt field, the motor operates at?
Base Speed
the output voltage of a series generator is set when the load is ________
Connected
In a compound DC motor control circuit, the field loss relay will disconnect the ________ if power is lost to the ________.
Armature, Shunt Field
What type of motor must never operate under a no load condition?
series
Armatures are wound to provide high voltage, high current or some specific combination of voltage and current. The winding that provides moderate voltage and current is the ___ wound.
Frogleg
In the shaded pole motor, the shading coil acts like a(n) ____ transformers secondary.
shorted
The speed regulation of a DC motor is proportional to the __________
Resistance of the armature
A force that tends to cause rotation is known as ______.
Torque
In a universal motor, inductive compensation can be used when the motor is connected to?
AC Only
The compound connection that is rarely used is?
Differential
In a two-phase power system has two voltages which are?
90 degrees out of phase
The rotating part of a generator is called the ____
Armature
Armature reaction is the bending of the main magnetic field by the _________ magnetic field.
Armature
The Holtz motor is a variation on the shaded pole motor. It operates at ___ RPM.
1200 RPM
The magnetic field is sometimes provided by electromagnets. This is done by windings that are wound around what?
Pole Pieces
A generator containing both series ans shunt field windings is called a ___ generator.
compound
The output voltage of a shunt generator is usually controlled by the amount of ________
Field excitation current
Conductive compensation is accomplished by connecting the compensating winding in ______ with the armature.
Series