Week 1 Transformers

Which side of the transformer is the source side?

• Secondary side

• Primary side

• Hot side

• Low side

Which side of the transformer is the load, or customer's side?

• Secondary side

• Primary side

• 120/240V side

• Bushing side

What are "bayonet" fuses used for?

• Energize and de-energize the transformer primary coil

• To shut off the primary cable coming into the transformer

• To Transform the voltage from high to low

• To separate the primary and secondary coil

What is a "CSP" transformer and what transformer parts are specific to a CSP?

• Confidently Self Protected

• Complete Service Protected

• Completely Self Protected

• Completely Self Providing

What are the three main components of a transformer?

• Primary bushings, pressure relief valve, and lightning arrestor

• The core, the windings, and the insulating fluid

• The core, the windings, and secondary bushings

• The core, nameplate, and insulating fluid

How are the secondary winding-ends tagged?

• A,B,C,D

• alley cat bad dog

• Letters

• X1, X2, and X3

A transformer has a blue sticker that says "Non-PCB". What does that mean?

• The fluid will not insulate for voltages over 15 KVA

• The fluid is not good, contains Polychlorinated Biphenyls

• The fluid contains less than 17 PPM of PCB's

• The insulating fluid is safe. Contains no Polychlorinated Biphenyls

What part of the transformer helps to relieve any buildup of gas inside the tank?

• Pressure relief valve

• The burp button

• Pressure leaker

• Gas atmosphere equalizer

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?

• Convection

• Induction

• Impedance

• Turns ratio

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 will be induced?

• 10 amps

• 110 volts

• 10 volts

• 93 volts