3. A 30, 25 kV, 500 MVA, 60 Hz alternator has a synchronous reactance X, = 1.5 pu. The alternator is connected to an infinite 25 kV bus, through a feeder of reactance 0.25 pu, as shown below. The terminal voltage of the alternator is maintained at 25 kV for any loading, by means of a voltage regulator that adjusts the field current. The alternator is delivering 0.75 pu average power to the bus. (a) Draw the phasor diagram. (b) Determine the current and the power factor of the alternator. (c) Determine the excitation voltage of the alternator. X, - v, 00 V

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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.