Prob: A 5000KVA, 6.6KV, 3-Ph star connected altemator has a resistance of 0.752/ph.Estimate by ZPF method the voltage regulation for a load current of 500A at power factor(i) Unity, (ii) 0.707 lagging and leading, from the following test data:Field current (A):O.C voltage (V) : 3100ZPF voltage (V): 03250751001404900 6600750083001850 425058007000

Draw a horizontal line at rated line voltage 6600 V to meet the ZPFC at 'B'. OB'=32 A is the…

Prob: A 5000KVA, 6.6KV, 3-Ph star connected altemator has a resistance of 0.752/ph. Estimate by ZPF method the voltage regulation for a load current of 500A at power factor (1) Unity, (ii) 0.707 lagging and leading, from the following test data: Field current (A): 32 O.C voltage (V): 3100 ZPF voltage (V) : 0 50 75 100 140 4900 6600 7500 8300 1850 4250 5800 7000

Prob: A 5000KVA, 6.6KV, 3-Ph star connected altemator has a resistance of 0.752/ph. Estimate by ZPF method the voltage regulation for a load current of 500A at power factor (1) Unity, (ii) 0.707 lagging and leading, from the following test data: Field current (A): 32 O.C voltage (V): 3100 ZPF voltage (V) : 0 50 75 100 140 4900 6600 7500 8300 1850 4250 5800 7000

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

Q9. Draw Zener regulator circuit to obtain regulated DC voltage 6.8 V. Considering input DC voltage in the range from 10V to 30V. Consider load resistance of 110KQ. Q10. Determine maximum and minimum value of Zener current if value of series resistance is 1 K, load resistance is 2KN and input varies from 10V to 30V. Zener voltage is 5 V. Q11. What is LED?
A three-phase 1MW AC-DC converter is to be connected to a 2.4kVLL/60Hz AC bus that presents a 200uH inductance per phase. What is the maximum magnitude, in Arms, that the 13th current harmonic of the converter can have, in order to comply with the IEEE 519 standard?
Input voltage of a boost converter 80 V, output voltage 140 V and switchingits frequency is 20 kHz. The converter efficiency is known to be 95%.a) Continuous conduction (current) in operation when the load resistance changes between 14 - 20ohmThe lowest inductance (L) value and output that should be used to maintain the operation.the peak-to-peak value of the voltage ripple should be used to be 2% of the output voltage.Calculate the capacitor's capacity (C).
The three-phase full-wave converter shown below is used to rectify the three phase (Y-connection) source signals. The six Thyristor are triggered in the sequence shown. Sketch for firing angle (a=90°) the output voltage (Vo), the phase current, the current for any two Thyristor in any one leg, and the load current (Ia). Then calculate (a) Thyristor average and r.m.s current. (b) Supply average and r.m.s current. (c) The normalized average output voltage. (d) The maximum output voltage. [Vdc = [1 - cos(60+ a)] Vml T If the line-to-neutral voltages are defined as 11 T, T T STA T. Load I sin od sin() ex-> Solve the question sin(with your own hands the corresponding line-to-line voltages are √31% sin (out + ) ---√(4)
An ideal boost converter is required to have a constant output voltage of 12 V at 24 W load.The input voltage varies from 2.7 to 4.5 V (as in a battery cell). Select a switching frequency of100 kHz. The value of the inductance in the boost converter is 2.2 uH. Determine:(a) The range of duty cycle that the converter will operate with (hint: mode?), and(b) The minimum value of the output capacitance such that the pk-to-pk load voltage rippleis less than 2%.
Please answer all subpart All is compulsory please
Exercise 1: Resistances connected in Series-Parallel across a Sinusoidal AC Supply Calculate the following: a) Current flowing through the circuit. (Irms) b) Voltage across resistors R1, R2, R6. (Vrms) c) Current flowing through the resistors R2, R3, R4. (Irms) d) Calculate the peak to peak-peak voltage (Vpk-pk) and peak-peak current (I pk-pk) e) Calculate the time period of the waveform Consider V=4V RMS and F=2 kHz
This part deals with DC-DC converters. A. Draw the circuit for boost dc-dc converter and explain its principle of operation. B. Derive the input-output relation for a boost dc-dc converter in the case of discontinuous current flow mode of operation. solve both part and fast
Dc converter
Exercise 1: Resistances connected in Series-Parallel across a Sinusoidal AC Supply Calculate the following: a) Current flowing through the circuit. (Irms) b) Voltage across resistors R1, R2, R6. (Vrms) c) Current flowing through the resistors R2, R3, R4. (Irms) d) Calculate the peak to peak-peak voltage (Vpk-pk) and peak-peak current (I pk-pk) e) Calculate the time period of the waveform Consider V=4V RMS and F=2 kHz
The circuit diagram of step-up type DC-DC converter is given below. It is assumed that the output capacitor is large enough and the output voltage is constant. (Consider that there is no circuit losses.) What should the inductance value be in order for the circuit to always operate in the Intermittent Current Mode (DCM)?Calculate.