EGII W3M

The voltage of each phase is dependent upon the ______ of rotation at any given time.

pg.43

• counter clockwise

• clockwise

• degree

• magnet

What happens if a generator that is connected to the system leads or lags the phase angle of the other generators connected to the system?

pg.43

• Protective equipment will open

• Nothing

• The other generators will do the same

• Black out condition will occur

All generators connected to the electrical system are the same phase angle of rotation at any given time.

pg.43

• True

• False

Severe damage can occur if an out of phase generator is connected to the system.

pg.44

• True

• False

What is the most common electrical motor used?

pg.45

• three phase current motor

• three phase voltage motor

• three phase capacitive motor

• three phase induction motor

How many components are in a three phase AC induction motor?

pg.45

• 1

• 2

• 3

• 4

Which component of a three phase AC induction motor does not move?

pg.45

• Stator

• Rotor

• Shaft

• Generator

Why are the phases in an induction motor wound in opposite direction on the stator poles?

pg.46

• opposite magnetic polarity

• same magnetic polarity

• They are wound in the same direction

• So the stator can move around the rotor

What phase sequence represents clockwise rotation?

pg.50

• BAC

• CBA

• ACB

• CAB

What phase sequence represents counter clockwise rotation?

pg.50

• CBA

• CAB

• ABC

• BCA