| dc.description.abstract | The transformer is an electrical device that uses a principle of solenoid
wrapped in kern, and there are usually two or more coils. Each coil of
the transformer is electromagnetically connected. The transformer is
made to fulfill the specific level of voltage required in the devices or
systems that use alternating current electrical energy. For example,
transformer tap change is design to have a different number of primary
turns to produce a fixed output voltage; in the term, there is a changing
in the input voltage. This research tries to analyze the effect of the
length of the primary coil difference of transformer to the voltage
resulted in the secondary coil. The objective of the study is producing
a relationship of primary coil length variation to the resulting voltage.
Variation of coil length is made from 1 cm to 15 cm with an interval
of 1 cm coil length. The length of the secondary coil is also varied into
3 cm, 6 cm, and 9 cm. The test is performed by providing the same
input voltage at each variation of the primary coil length and then
measure the output voltage. The results show that the longer primary
coil will produce a smaller output voltage in the secondary coil of the
transformer. Based on the resulted graph, the relationship of the length
variant of the primary coil is linear to the voltage measured in the
secondary coil, with determination coefficient (R
2
) of 0.9603, 0.9775,
and 0.9822 respectively for the length of 3 cm, 6 cm, and 9 cm of the
secondary coil. | en_US |
