B- 1 As the name implies, a 3-phase "dual-voltage motor" can be connected to one of two voltages. a) true b) false B-2 - A 3-phase dual-voltage motor may have_______leads. a) nine b) twelve c) either "a" or "b" d) neither "a" nor "b" B-3-Which of the following mathematically represents the relationship between Ete phase and line voltages of a WYE connected 3-phase motor? a) EPHASE = ELINE ÷ 1.732 b) ELINE = EPHASE x 1.732 c) ELINE = EPHASE X√3 d) all of the above

Q2. (a) (i) Discuss briefly the use of a damping winding to start a three- phase synchronous motor. (ii) A 2200V, 3-phase star connected synchronous motor has a per phase resistance and per phase reactance of 0.20 and 2.10 respectively. Determine the value of the back emf per phase if the motor operates at a 50% power factor and at a line current of 198A.

P-1). All dual-voltage single-phase split-phase motors have two sets of start windings. a) true b) false P-2). Which of the single-phase split-phase motors listed below is designed to have its start winding energized while running. a) resistance-start induction-run b) capacitor-start induction -run c) capacitor-start capacitor-run d) all of the above P-3).Which of the capacitors listed below has the longer duty cycle because it can dissip eat better? a) electrolytic b) oil

DEGREE: BS ELECTRICAL ENGINEERING COURSE: AC MACHINES  Note: Please solve in this way. Given>Missing>Illustration>Solution>FinalAnswer. Please include symbols, units, formulas, step by step solution, please don't cut the solution. Thank you!   (#15) A three-phase 6-pole; 60-cycle, 230-volt wound rotor induction motor has its stator connected in delta and its rotor in wye. There are 75 percent as many rotor conductors as stator conductors. Calculate the voltage and frequency between slip rings if normal voltage is applied to the stator when (A) the rotor is at rest, and (B) the rotor slip is 0.04. [Answer: 298.7V; 60 Hz; 11.95V; 2.4 Hz]

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I need answers for V, Vi, Vii and Viii