b. Calculate the idle running iron and magnetizing currents and the efficiency of the transformer in idle operation. c. Calculate the secondary voltage of the transformer and the active and reactive powers drawn from the secondary side by using the T equivalent circuit under conditions where the transformer is connected to the network where the voltage does not change and feeds a load of Zy = 0.5+ j0.3ohm.
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.
Equivalent circuit parameters R1 = 1ohm, X1 = 2ohm R2 = 0.0035 ohm X2 = 0.0045ohm Xm = 1100ohm Rfe = 6400ohm primary voltage of a single-phase transformer in idle operation is 220 volts, secondary voltage is 11 volts. (Xm is magnetizing reactance, Rfe is iron resistance, values indicated by index 1 belong to primary side, values indicated by index 2 belong to secondary side)
a. Calculate the secondary values reduced to primary.
b. Calculate the idle running iron and magnetizing currents and the efficiency of the transformer in idle operation.
c. Calculate the secondary voltage of the transformer and the active and reactive powers drawn from the secondary side by using the T equivalent circuit under conditions where the transformer is connected to the network where the voltage does not change and feeds a load of Zy = 0.5+ j0.3ohm.
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