Deck 29: Single Phase Motors

Question 1

Motors that change speed by changing the number of stator poles are called ____________________ motors.

Answer 1

consequent pole

Question 2

Centrifugal switches can be used on all types of split phase motors.

Answer 2

False

Question 3

Split phase motors operate on the principle of a rotating ____________________.

Answer 3

magnetic field

Question 4

The solid-state relay uses a solid-state component called a(n) ____________________.

Question 5

The potential starting relay is used with the capacitor start capacitor run or ____________________ capacitor motor.

Question 6

The hot-wire relay functions as both a starting relay and an overload relay.

Question 7

Shaded pole motors are used in applications where it is necessary to reverse the direction of rotation of the motor.

Question 8

What are the two factors which determine the speed of a rotating magnetic field?

Question 9

What are the three types of split phase motors?

Question 10

In split phase motors, the centrifugal switch is operated by springloaded ____________________.

Question 11

How can the direction of rotation of a split phase motor be reversed?

Question 12

In order to split one phase into two, split phase motors contain two separate windings. What are they and how are they connected to each other?

Question 13

In order to produce a rotating magnetic field, there must be more than one phase.

Question 14

Multiple speeds are obtained by connecting inductance in parallel with the main run winding.

Question 15

What does it mean if a thermistor has a positive coefficient of resistance?