E-Grid 2 WK 3 D1

Multiple Choice

In the power delivery system, many generators are connected together via

the transmission network. In order to connect these generating facilities

together (bring them online) the angle of rotation of the generators must be

exactly the same. They must rotate in ________.

• union

• series

• parallel

• unison

Multiple Choice

The three-phase AC induction motor is the most common electrical motor

used because it is rugged, reliable, and efficient. Three-phase induction

motors are very simple in design, consisting of a ______ (the stationary part)

and a rotor (the rotating part).

• stator

• rotor

Multiple Choice

It is an awesome trait of the power delivery system to know that all of the

generators that are connected to a regional transmission network are all at

the same angle of rotation at _____ ______ _______.

• all given tune.

• any given temperature

• any time after 8 p.m.

• any given time.

Multiple Choice

When the ______ _______________ is

maintained throughout the system, three-phase motors will spin in the same

direction as the generator.

• please sequence

• phase

  sentence

• phase sequence

Multiple Choice

The three-phase AC induction motor is the most common electrical motor

used because it is rugged, reliable, and efficient. Three-phase induction

motors are very simple in design, consisting of a stator (the stationary part)

and a _________(the rotating part).

• stator

• rotor

Multiple Choice

If a generation unit experiences a mechanical problem, or if for any other reason a

generator begins to ____ __ _____in rotation, protective equipment just outside

the generating station automatically opens.

• lead or feed

• hip or hop

• sag or lag

• lag or lead

Multiple Choice

As the magnetic field of the ______

rotates, the _______follows in the same

direction.

• stator / rotor

• rotor / stator

Multiple Choice

If the

phase sequence is changed, rotation will remain unchanged.

• True

• False

Multiple Choice

ABCABCABC

• Is counter clock wise

• Is clock wise

Multiple Choice

CBACBACBA

• Is counter clock wise

• Is clock wise