Problem 1 A 209-V, three-phase, six-pole, Y-connected induction motor has the following parameters: R1 = 0.128 Q, R'2 = 0.0935 Q, Xeg =0.490. The motor slip at full load is 2%. Assume that the motor load is a fan-type. If an external resistance equal to the rotor resistance is added to the rotor circuit, calculate the following: Problem 3 For the motor in Problem 1 and for a fan-type load, calculate the following if the voltage is reduced by 20%: a. Motor speed b. Starting torque c. Starting current d. Motor efficiency (ignore rotational and core losses)
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.
Please Answer question 3
some provided answers:
b. Tstart = 71.93 Nm
c. Istart = 179.51 A
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