Week 1 Flashcards
Which side of the transformer is the source side?
Primary side
Which side of the transformer is the load, or customer’s side?
Secondary side
What are “bayonet” fuses used for?
Energizing and de-energizing the transformer
A transformer has a blue sticker that says “Non-PCB”. What does that mean?
The insulating fluid is good; contains no Polychlorinated Biphenyls
A coil of wire will become energized if it is placed close to another coil of wire that is attached to AC power. What is this phenomenon called?
Induction
Where is the X1 bushing on an additive transformer, as you face it?
The right of the X2
State the polarity rule
Transformers 200kVA and smaller, with a primary rating of 8,660 volts and below, will be rated additive. All other transformers will be subtractive.
How are the secondary winding-ends tagged?
A, B, C, D
What are the three main components of a transformer?
The core, the windings, and the insulating fluid
If 100 volts is supplied to a primary coil wound 100 times, and the secondary coil with only 10 wraps is placed near it, how many volts will be induced?
10 volts
What is a “CSP” transformer and what transformer parts are specific to a CSP?
Completely Self Protecting, and there is an internal primary fuse link and a secondary breaker
What part of the transformer helps to relieve any buildup of gas inside the tank?
Pressure relief valve
