Transformers 1

When a coil becomes energized when place close to another coil is called

Induction

What are three main components of a transformer?

Core, winding and insulating fluid

How are secondary windings tagged

A, B, C, D

What is a net fuse used for?

For energizing and deenergizing the transformer

What is a CSP transformer?

It is internally protected by a current limiting fuse

where is X one bushing on an additive transformer

Right side

How is a conventional transformer Protected

External protective fuse device

What side is X1 bushing on subtractive transformer?

Left side

What is turns ratio?

the comparison of the number of turns of wire in each coil

What is impedance?

Total opposition to current flow caused by a transformer

Iron losses are also known

No load losses

Copper losses are also known

Caused by load

How are primary bushings on a pad mount labeled?

H1A, H1B

The core of the transformer does what

Provides a path for magnetic coupling for the two winding

Which transformer has an internal fuse?

CSP

Transformers 200 KV and smaller with a primary rating of 8660 volts below will be

Additive

If a transformer that is the 150 KV with a primary rating of 9000 Volts, it is

Subtractive

Turns ratio Formula

Hot to ground rating 7200

—-—————————- Example ———

High side of secondary 240