Exam 30: Direct Current Generators

The rotating part of a generator is called the .

Armatures are wound to provide high voltage, high current or some specific combination of voltage and current. Which type of winding provides moderate voltage and moderate current?

is a measure of the useful electric energy produced by the generator.

Armatures are wound to provide high voltage, high current, or some specific combination of voltage and current. Which type of winding provides high voltage and low current?

A generator containing both series and shunt fields is called a generator.

The output voltage of a generator is usually controlled by the amount of .

The ride against the commutator segments and are used to connect the armature to the external circuit of the DC machine.

The series generator has only a series field, which is connected in with the armature.

A compound generator has both series and shunt field windings. When those windings are connected so they aid each other in the production of magnetism, that connection is called .

A compound generator has both series and shunt field windings. When those windings are connected so their fields oppose each other in the production of magnetism, that connection is called .

Armatures are wound to provide high voltage, high current, or some specific combination of voltage and current. Which type of winding provides low voltage and high current?

Series field windings are connected in series with the armature. They are wound with turns of fairly wire.

What is a device that converts mechanical energy into DC electrical energy?

What is the component of a DC generator that converts the armature AC into DC?

Shunt field windings are connected in parallel with the armature. They are wound with turns of fairly wire.

What provide(s) the magnetic field necessary for the operation of a DC machine?

The relationship of the strengths of the two fields in a generator determines the amount of .

In a generator, the permits part of the current that normally flows through the series field to flow through the resistor.

Shunt generators contain only a shunt field winding connected in with the armature.