Q6) Three identical coils ,each ofsesistance102 and uinductance 42mH are connectedin star to a 415 V, 50 Hz, 3¢ sufplyDeternine (a) Phase Gmpedance(th) Line voltagec) Phase Voltaged) Phase Curcht, fouer factor(e) Pewer disifated.

It is given as a 3 phase supply and so line voltage is 415 V Phase voltage can be found by:…

Answered: of each resistance 96) Three identical…

of each resistance 96) Three identical coils , 102 and inductance 42mH are conected in star to va 415 V, 50 Hz, 3¢ suffly Determine (a) Phase impedance (th) Line voltage c) Phase Voltage

Electrical Transformers and Rotating Machines

4th Edition

ISBN:9781305494817

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter2: Magnetic Induction

Section: Chapter Questions

Problem 10RQ: What electronic component is often used to prevent large voltage spikes from being produced when the...

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A balanced positive-sequence wye-connected 60-Hz three-phase source has line-to-line voltages of VL = 440 V rms. This source is connected to a balanced wye-connected load. Each phase of the load consists of a 0.5-H inductance in series with a 50-? resistance. Assume that the phase of Van is zero. A) Find the line-to-neutral voltage phasor Van. Enter your answer using polar notation. Express argument in degrees. B) Find the line-to-neutral voltage phasor Vbn. Enter your answer using polar notation. Express argument in degrees. C) Find the line-to-neutral voltage phasor Vcn. Enter your answer using polar notation. Express argument in degrees. D) Find the line-to-line voltage phasor Vab. Enter your answer using polar notation. Express argument in degrees.
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3. (i) Three identical capacitors are connected in delta with 400 V. If the line current is 12 A determine the capacitance of each of the capacitors. If the 0 60° then calculate the power dissipation in kW when it is connected in STAR ENGG_AC_Quiz-Format_01/2016-17_V02 (ii) Three coils each having resistance 6Q and inductance are connected in star with 415V. If the line current is 30 A, find the value of inductive reactance as well as inductance value. If 0 45° then calculate the power dissipation in kW when it is connected in Delta.
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