Blog

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

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 _____.

In the shaded-pole induction motor, the shading coil acts like a transformer with a(n) _____ secondary winding.

A two-phase power system has two voltages that are _____ out of phase.

The _____ winding is made of a few turns of large wire and is located at the bottom of the stator core  of a split-phase motor.

What is a special type of motor designed to operate with the rotor stalled without damage to the motor?

In single-phase motors such as the resistance start induction-run motor, the start winding is disconnected by the _____.

A squirrel-cage rotor induction motor has a synchronous speed of 3600 RPM and an actual rotor speed of 3450 RPM. What is the percent slip?

The _____ motor can operate on either AC or DC voltage.

To reverse the direction of rotation of a three-phase motor, reverse _____.