Engineering Laboratories, Inc. (SEL) has requested the transformer with
primary, secondary, and tertiary windings to include:
kVA (or 50/50/5.0 kVA).
turns (1/2 Volt per turn).
should have leads left open so they can be connected in testing to a
specific formation: delta or wye.
from turns at specific locations: 2, 4, and 8 winding turns and 1%, 2%,
5%, and 10% of the winding. Use only 2, 4, and 8 winding turns in
tertiary. Taps should come from the turns to a plate of some kind and
3 legs (If cost will be too high, only put taps on middle leg.).
to measure heat.
coils to measure flux.
size should be rated for dry use—may be immersed in oil later.
needs to be as small as possible.
the time we create the test
bench, we will also be creating a safety procedure as we do some
initial testing on an existing transformer. Specific safety concerns to
be researched are listed:
transformer when there is a huge current running through a small number
of turns. Possible solutions include current transformers, switches,
fuses, and circuit breakers.
must not be ruined.
and the surrounding
environment must remain safe during all testing.
need at least ten duty
cycles to read a measurement