ELE 148 Types of Transformers

4 Types of Transformation

Rectification, Inversion, Transformation, Chopping

Rectification

AC into DC

Inversion

DC into AC

Transformation

AC into AC

Chopping

DC into DC

2 Ways Electricity can Travel

Conduction and Induction

Conduction

Electricity Travel using a wire

Induction

Transfer of electricity from one conductor to another without a physical connection

Unity Power Factor

Having a power factor of 1. Reactive power will be 0 and Z = R.

8 types of single phase transformers

Step-up, Step-down, Isolation, Coupling, Auto Transformer, Potential, Current, Control Power Transformer

3 Special Data center Distribution Transformers

Potential, Current, CPT (Control Power Circuit)

Step-up Transformer

Increases voltage from primary to secondary

Step-Down Transformer

Decreases voltage from primary to secondary

Isolation

1:1, use this for circuit protection of low frequency, 60 Hz

Coupling

1:1, Circuit Protection, High Frequency, 2000 MHz

Auto Transformer

1 Winding in 2 parts. 1 Metal part divided by another metal part called a tab.

Potential Transformer (PT)

Conditions Voltage for power system relays

Current Transformer (CT)

Conditions the current for power system relay.

CPT - Control Power Transformer

Provides control voltage for electronic equipment

3 Phase Transformers - 2 types of connections

Delta and WYE

4 types of 3 phase transformers

Y:Y, DELTA:Y, Y:DELTA, DELTA:DELTA

Y:Y

Small Power Systems

DELTA:Y

Most Common

Why is DELTA:Y most common?

DELTA deals with high current, Y allows for multiple voltage options

3 types of 3 Phase Cooling

Ambient Air, Forced Air, Oil Cooled