Question 1

_____________________ leakage is the amount of magnetic flux lines that do not follow the metal core and are lost to the surrounding air.

Accepted Answer

The answer of _____________________ leakage is the amount of magnetic...

Question 2

____________________ are often connected in series with a low-impedance load to prevent inrush current from becoming excessive.

Accepted Answer

The answer of ____________________ are often connected in series with...

Question 3

When a transformer has two primary windings, they are connected in ____________________ to operate at the lower voltage.

Accepted Answer

The answer of When a transformer has two primary windings,...

Question 4

A Powerstat is an autotransformer where the turns ratio can be adjusted _________________________.

Accepted Answer

The answer of A Powerstat is an autotransformer where the...

Question 5

When a transformer has two primary windings, they are connected in ____________________ to operate at the highest voltage.

Accepted Answer

The answer of When a transformer has two primary windings,...

Question 6

Most transformer cores are made from thin steel punchings ____________________ together to form a solid core.

Accepted Answer

The answer of Most transformer cores are made from thin...

Question 7

The ____________________ winding of a transformer is the load winding.

Accepted Answer

The answer of The ____________________ winding of a transformer is...

Question 8

The purpose of a ____________________ conductor is to carry the difference in current between two hot conductors and maintain a balanced voltage.

Accepted Answer

The answer of The purpose of a ____________________ conductor is...

Question 9

If a transformer has a primary voltage of 480 volts and a secondary voltage of 240 volts, the turns ratio of this transformer is ____________________.

Accepted Answer

The answer of If a transformer has a primary voltage...

Question 10

An isolation transformer that is used to change the high voltage sent out by the power company to the common 240/120 volts used to supply power to most homes and small businesses is called a(n) ____________________ transformer.

Accepted Answer

The answer of An isolation transformer that is used to...

Question 11

A reactor is an inductor used to add ____________________ to the transformer circuit.

Accepted Answer

The answer of A reactor is an inductor used to...

Question 12

In a(n) ____________________ transformer, there is no physical or electrical connection between the primary and secondary windings.

Accepted Answer

The answer of In a(n) ____________________ transformer, there is no...

Question 13

A transformer that has a lower secondary voltage than primary voltage is called a ____________________ transformer.

Accepted Answer

The answer of A transformer that has a lower secondary...

Question 14

When computing the values of an isolation transformer with multiple secondary windings, each secondary must be treated as a different ____________________.

Accepted Answer

The answer of When computing the values of an isolation...

Question 15

A transformer where the secondary voltage is greater than the primary voltage is called a ____________________ transformer.

Accepted Answer

The answer of A transformer where the secondary voltage is...

Question 16

The ____________________ winding of a transformer is the power input winding.

Accepted Answer

The answer of The ____________________ winding of a transformer is...

Question 17

An isolation transformer that has more than one set of lead wires connected to the primary or secondary windings is called a ____________________-tapped transformer.

Accepted Answer

The answer of An isolation transformer that has more than...

Question 18

The tape wound, or toroid, core transformer is constructed by tightly winding one long continuous silicon steel tape into a ____________________.

Accepted Answer

The answer of The tape wound, or toroid, core transformer...

Question 19

The core of an isolation transformer is made of steel that is laminated to reduce power losses caused by ____________________ current induction.

Accepted Answer

The answer of The core of an isolation transformer is...

Question 20

A(n) ____________________ transformer is used to reduce the line voltage to the value needed to operate control circuits.

Accepted Answer

The answer of A(n) ____________________ transformer is used to reduce...

Quiz 18: Single-Phase Transformers

_____________________ leakage is the amount of magnetic flux lines that do not follow the metal core and are lost to the surrounding air.

____________________ are often connected in series with a low-impedance load to prevent inrush current from becoming excessive.

When a transformer has two primary windings, they are connected in ____________________ to operate at the lower voltage.

A Powerstat is an autotransformer where the turns ratio can be adjusted _________________________.

When a transformer has two primary windings, they are connected in ____________________ to operate at the highest voltage.

Most transformer cores are made from thin steel punchings ____________________ together to form a solid core.

The ____________________ winding of a transformer is the load winding.

The purpose of a ____________________ conductor is to carry the difference in current between two hot conductors and maintain a balanced voltage.

If a transformer has a primary voltage of 480 volts and a secondary voltage of 240 volts, the turns ratio of this transformer is ____________________.

An isolation transformer that is used to change the high voltage sent out by the power company to the common 240/120 volts used to supply power to most homes and small businesses is called a(n) ____________________ transformer.

A reactor is an inductor used to add ____________________ to the transformer circuit.

In a(n) ____________________ transformer, there is no physical or electrical connection between the primary and secondary windings.

A transformer that has a lower secondary voltage than primary voltage is called a ____________________ transformer.

When computing the values of an isolation transformer with multiple secondary windings, each secondary must be treated as a different ____________________.

A transformer where the secondary voltage is greater than the primary voltage is called a ____________________ transformer.

The ____________________ winding of a transformer is the power input winding.

An isolation transformer that has more than one set of lead wires connected to the primary or secondary windings is called a ____________________-tapped transformer.

The tape wound, or toroid, core transformer is constructed by tightly winding one long continuous silicon steel tape into a ____________________.

The core of an isolation transformer is made of steel that is laminated to reduce power losses caused by ____________________ current induction.

A(n) ____________________ transformer is used to reduce the line voltage to the value needed to operate control circuits.