A three-phase delta-connected AC controller has a resistive load of 10 2. The rms AC line voltage, VLL. is 415 V at 50 Hz and the firing angle of the thyristors is 95°. (i) Sketch and label the equivalent three-phase delta-connected controller circuit. (ii) (iii) (iv) Prove that the rms line-line voltage, VLL-rms is equals sin 2a VLL-rms= 1/1/√(π – α +³ A step-by-step derivation is required Determine the rms output phase voltage, Vo-ms, rms output phase current, Iph- rms and rms line current, IL-rms- Calculate the power factor, PF.

A three-phase delta-connected AC controller has a resistive load of 10 2. The rms AC line voltage, VLL. is 415 V at 50 Hz and the firing angle of the thyristors is 95°. (i) Sketch and label the equivalent three-phase delta-connected controller circuit. (ii) (iii) (iv) Prove that the rms line-line voltage, VLL-rms is equals sin 2a VLL-rms= 1/1/√(π – α +³ A step-by-step derivation is required Determine the rms output phase voltage, Vo-ms, rms output phase current, Iph- rms and rms line current, IL-rms- Calculate the power factor, PF.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

write introduction to AC and DC currents, where they are used, their advantages/disadvantages, etc. With pictures and drawings showing it.
Discuss the concept of power factor in AC circuits and its significance in power distribution.
) A chopper circuit drives an inductive load from 120 DC supply. Given the load resistance as 6 0, the average load current as 52.5 A and operating frequency is 450 Hz. When the chopper is ON, 5 V is dropped. Calculate of (a) conduction period (in milliseconds) (b) blocking period of the chopper (in milliseconds) (1. (c) duty cycle of the chopper (d) draw the ON and OFF time period waveform tic (ii) Draw the circuit diagram of the single phase bridge rectifier which is used in four quadrant operation (RL load) and explain its operation. ( Duty Cycle ON period OFF period
Q9. What is the basic principle that a cage winding can be represented by a three-phase winding? Give your explanation.
Describe the purpose and operation of transformers in electrical power systems.
b) State TWO (2) advantages of AC systems compared to DC System
Q2]] write swing equation (P. U.) for Power system stability. Q-LAB cop!.. Si-e Define stability and what are the classifications of disturbance may be occurred in power system.
Two DC generators, each with armature resistance of 0.02 ohm and fieldresistance of 50 ohms run in parallel and supply a total current of 1000 amperesto the load circuit. If their emfs are 270 V and 265 V, their bus bar voltagewill be. [Ans. 267.5 V]
Q1) A single-phase AC voltage controller is connected to an inductive load with a resistance of 10 and load impedance angle of 45°. The input ac voltage is 230 V at 50 Hz. (a) Draw the load voltage waveforms and derive an expression for the rms load voltage. (b) Determine the maximum load voltage, maximum load current, and range of delay angie for which the load voltage does not change.
a) A sinewave is having a frequency of 100 Hz and instantaneous value of 150 Volts at 1.5 milli seconds. Find i) The maximum value of sinusoidal voltage waveform and ii) The value of voltage at 1.8 milli seconds. b) Determine the instantaneous equation for the voltage waveform shown in figure, if Vp=100 Volts, Time period is 20 milli seconds and =40 degrees. Vp ì = 0