Three zones of a single-phase circuit are identified in Figure. The zones are connected by transformers T1 and T2, whose ratings are also shown. Using base values of 30 kVA and 240 volts in zone 1: a. draw the per-unit circuit and determine the per-unit impedances and the per-unit source voltage. b. calculate the load current both in per-unit and in amperes. Transformer winding resistances and shunt admittance branches are neglected.
Three-Phase Transformers
Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.
Transformer
Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.
Three zones of a single-phase circuit are identified in Figure. The zones are connected by
transformers T1 and T2, whose ratings are also shown.
Using base values of 30 kVA and 240 volts in zone 1:
a. draw the per-unit circuit and determine the per-unit impedances and the per-unit
source voltage.
b. calculate the load current both in per-unit and in amperes. Transformer winding
resistances and shunt admittance branches are neglected.
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