A 200U, loso rpm, 1o A Separately - excitedde motor is fed from a single -phase fullConverter with ac Source Voltage of 230V,50H2..Armatare Resistance is 12. Calculate firing angle for(i) rated motar torque at 500 rpm-Gi). half the Vatecd motor torque at 500Ypm

Given,200 V 1000 rpm 10A230 V, 50HzVm=2×230Vt=Ea+IaRaVt=Kmωm+IaRaFrom here,Km=Vt-IaRaωm…

* A 2000, loo rpm, 1oA Separately - excited de motor is fod from a Single -phase full Converter with ac Source volFage of 230v,50H2.. Armature Resistance is 152. Calculate firing angle for (i) rated motar torque at 5o0 rpn. lii). half the rated motor torgue at 500 rpm -',

* A 2000, loo rpm, 1oA Separately - excited de motor is fod from a Single -phase full Converter with ac Source volFage of 230v,50H2.. Armature Resistance is 152. Calculate firing angle for (i) rated motar torque at 5o0 rpn. lii). half the rated motor torgue at 500 rpm -',

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

(A shunt DC motor has a total resistance value for all conditions as Ra= 2 Q and under full load conditions (nominal load) armature current is Ia = 10 A. The nominal terminal Voltage for the motor is Vr-300 V and total value for field circuit resistance for all conditions is Rf=150 Q. Under full load conditions (nominal load), find the internal generated Voltage (EA), excitation circuit current (field current) (If), (total supply current flow, from electrical source) line current (IL), electrical input power (Pin) supplied from the source. Be careful about your solutions to be written readable and write the answers as it was shown below inside boxes.) EA = If = IH (IL) = Pin =
Q16 A 240V, 50 Hz, single-phase capacitor start a.c. motor is loaded such that the slip is 6% the motor constants referred to the stator are : Stator resistance 2.20; rotor resistance 3.80 Stator reactance = 30 ; rotor reactance 2.10 Magnetizing reactance 860 ; iron and friction loss 500 Draw the equivalent circuit and from it find the output power and efficiency at the given loading. Ans[ 1090 W, 74.6%]
A 10 kW, 250V shunt motor has an armature resistance of 0.5ohm and a field resistance of 200ohm. At no load and rated voltage, the speed is 1200 rpm and the armature current is 3A. At full load and rated voltage, the current line is 47A and because of armature reaction, the flux is 4% less than it no load value. (a.) What is the full load speed? (b.)What is the developed torque at full load? 1158 rpm
Electromechanical energy conversion (100 V DC serial motor has a starting current value of 50 .A Total armature resistance (Ra) value si 4times of serial field circuit total resistance (Rs) for this motor. And rated load (full load) line current value si I=5 A. Motor si rotating with 600 pm value under rated load conditions. Find the starting resistance (Rst) for this motor to be connected befween the electrical source and the motor, to limit the starting current to 10 A. Find the internal generated voltage (Ea) value under rated load (full load) conditions. If the load of this motor is changed till having aline current value of 2 A, find the new speed value of this motor in rpm (n2). Write the answers inside boxes below.) Rst = Ea= n2=
A brushed DC motor is spinning at a maximum no-load speed of 6206 rpm. The nominal brush voltage drop is 0.67 V and the rated terminal voltage of the machine is 13 V. Determine the voltage constant, Ke, of the machine in Vs/rad.
A 0,9 kW DC shunt motor is loaded by a constant torque of 12 Nm. The armature resistance of the motor is 5 Ω, and the field constant KØ = 3 Vs/rad. The motor is driven by a half wave thyristor converter. The power source is a 140 V, 50 Hz. The triggering angle of the converter is 450 and the conduction period is 1650 . Calculate the motor speed and the developed power.
An armature controlled DC motor has the following parameters: Tf = 0.03 Nm KT = 0.15 Nm/A Imax = 2.4 A KĘ = 0.15 Vs/rad Wmax = 5000 rpm R = 0.8 Ohms 1. Determine the following: (i) The maximum output torque. (ii) The maximum power output. (iii) The maximum armature voltage. (iv) The no load motor speed when e = Emax 2. Plot the following relationships: (i) Torque versus current (ii) Induced voltage versus speed 3. If the above motor is operated at 3000 rpm with a load torque of 0.15 N.m, determine the armature voltage
6. The efficiency of DC to DC converter to drive de motor is --- than AC to DC Drives a) lower b) equal e) higher 7- The Four-quadrant operation of de motor can he implanted using -- e) Semiconverter 8. The supply froqueney of induction motor using frequency control is changed to - a) Full converter b) Dual converter a) abuve rated frequency. b) below rated frequency. e) Abuve and below rated frequency. 9. The stable operation in torque- speed churacteristic for induction motor occur: e) at slip 05 to Sms 10. The regenerative hraking for de to de convernter fed de motor would be effective if the a) between maximum slip and s0 h)at slip =1 operating speed m : a) or t b) > uin c) thi