LAP 6 Transformers

A(n) _____________ transformer uses the same coil for the primary and secondary.

auto

A(n) __________ _________ splits the secondary voltage in half.

center tap

A common application of a transformer with a center tap is a distribution transformer. This type of transformer is the most _________.

common

A(n) ___________ transformer is commonly used to reduce the line voltage from 480 VAC or 240 VAC to 120 VAC.

control

3 parts of a transformer- 1. Primary Coil 2. Secondary Coil 3. ________

core

The __________ transformer is used for homes and businesses to change the high voltage of power company distribution lines to common 240/120 VAC supply.

distribution

When the secondary voltage in a transformer is less than the primary voltage, the transformer is called a step-______ transformer.

down

If a transformer is operated at something other than rated load and voltage, the _________ will be lower.

efficiency

In a(n) ______________ transformer, the primary and secondary windings are physically and electrically isolated.

isolation

The voltage induced in the secondary coil can then be used to drive a ______.

load

Because of the construction of a transformer, there is usually a small amount of _________ between the primary power and the secondary power.

loss

___________ _________ is the ability of one coil to induce voltage in another coil.

mutual inductance

The current load of a transformer is the current drawn by the _________ winding, Ip.

polarity

The ___________ coil of the transformer creates a magnetic field that is concentrated by the core.

primary

The current load of a transformer is the current drawn by the ___________ winding.

primary

The voltage induced in the _________ coil can be used to drive a load.

secondary

A(n) _______ is an electrical device that converts AC electricity from one voltage level to another.

transformer

Many machines require a(n) ____________ to step down the line voltage to the machine's operating voltage.

transformer

The _______ _______ of a transformer determines the relationship between the primary coil and the secondary coil.

turns ratio

When the secondary voltage in a transformer is more than the primary voltage, the transformer is called a step-______ transformer.

up

Transformers are usually rated in _____________.

volt amperes (VA)