Week 1 (chapter 1-3) Flashcards
electrical device that either steps up voltage or steps it down?
transformer
the secondary side of a transformer can be considered the _____ side?
load
which side are the H1 H2 bushings found?
primary
which side are the X1 X2 X3 bushings found?
secondary
which of the secondary bushings X1, X2, or X3 is the neutral?
X2
where would you find H1A and H1B bushings?
primary side of pad mount transformer
used in pad mount transformers for energizing/de-energizing
bayonet fuse
bayonet fuses disconnect the primary or secondary side of a pad mount transformer?
primary
if you have three banked 15 KVA transformers, how many watts of power is supplied by the bank?
45,000 watts
what are the two types of overhead transformers?
conventional / CSP
what does CSP stand for?
completely self protected
internally protected by a current limiting fuse, also protected by a circuit breaker?
CSP transformer
has it’s own attached lightning arrestor?
CSP transformer
has secondary breaker?
CSP transformer
receives feed by underground conductor?
pad mount
has external cutout/current limiting fuse
conventional transformer
what are the three main components of a transformer?
core/windings/insulation
provides a path for the magnetic coupling of the two windings?
core
core is typically configured in two ways. They are?
wound type/shell type
what kind of steel is used to help reduce losses within the core
amorphous
pressure relief valves are set to?
10 psi
has low resistance, superb conductivity and used for windings?
copper
primary windings are typically smaller than secondary windings…….Why?
more amperage on the load side of the transformer
secondary WINDING ends are labeled ?
A B C D
what role does the insulating fluid play besides to insulate?
cooling
pressure in the form of gas is normally a result of a _______ in the windings.
short
