Homework Answers
Add Answer to:
As shown in the following figure, the speed of a 12 kW, 220 V, 1000 rpm...
solve it now please A 220 V, 1000 rpm, separately excited dc motor is fed from...
solve it now
please
A 220 V, 1000 rpm, separately excited dc motor is fed from a three-phase controlled three-phase ac-dc converter through 220 V (line value-rms value), 50 Hz ac-source. It is required to apply 220 V (dc-value) across the motor terminals. What is the firing angle if the motor speed is 1000 rpm and takes 10 A ripple-free current. The armature resistance is 1 ohm. The field circuit with 198 ohms is fed from a fully controlled single-phase...
Open Book Exam A 220 V, 1000 V dc-sourc rpm, separately dc motor is fed from a dc-dc converter th...
Open Book Exam A 220 V, 1000 V dc-sourc rpm, separately dc motor is fed from a dc-dc converter through 550 e with duty cycle 40 %. The motor speed is 1000 rpm when takes ripple free and armature resistance is 1 Ω. The motor constant is 6/π V/A-rad/s. The field circuit with 198 Ω is fed from a controlled single-phase rectifier and set to the maximum possible value. The ac source for field circuit is 220 V, 50 Hz....
6. The speed of a 150 HP, 650 V, 1750 rpm, separately excited DC motor is...
6. The speed of a 150 HP, 650 V, 1750 rpm, separately excited DC motor is controlled by a 3- phase full converter. The converter is operating from 3-phase, 460 V, 50 Hz supply. The rated armature current of the motor is 170 A. The motor parameters are Ra = 0.099 2, La = 0.73 mH, and K.D=0.33 V/rpm. Neglect the losses in converter system. Determine i. No-load speed at firing angles a = 0º and a = 30°. Assume...
4. A 3-phase full-wave converter drive is feeding power to a 220 V, 20 A, 1000...
4. A 3-phase full-wave converter drive is feeding power to a 220 V, 20 A, 1000 rpm separately excited dc motor. The ac input to the converters are 415 V, 3-phase, 50 Hz, Y-connected supply system. The field is also controlled by a 3-phase full converter and is set to the maximum possible value. The armature resistance is 0.5 Q and the field resistance is 250 12. The motor voltage constant is 1.2 V/A rad/s. Assume continuous conduction and ripple...
Q2. (10 points) A 10 kW, 100 V, 1000 rpm dc shunt generator has armature resistance...
Q2. (10 points) A 10 kW, 100 V, 1000 rpm dc shunt generator has armature resistance Ra = 0.1.2. The field current generating 100 V at no-load is 1.0 A. The magnetization characteristic at 1000 rpm is shown in figure below. The machine is operated as a separately excited dc generator at 1000 rpm with rated field current. Neglecting the armature reaction effect; (a) Determine full load armature current, la (b) Determine the terminal voltage at full load, with ly...
i. The speed of a separately excited dc motor is controlled by a one-phase full-wave converter. The field circuit is also controlled by a full-wave converter, see V supply) Vs pk-150V Ra-0.310 L Rf 1...
i. The speed of a separately excited dc motor is controlled by a one-phase full-wave converter. The field circuit is also controlled by a full-wave converter, see V supply) Vs pk-150V Ra-0.310 L Rf 152O E-63V α. 1-35A Figure 3 The AC supply voltage to the armature and field converters is one-phase, 150Vpeak, 50Hz. The armature resistance Ra-0.31Ω, the field circuit resistance Rf-152Ω, and the motor voltage constant is Kv-1.3V/A. The armature current corresponding to the load demand la-35A The...
A power electronic converter used to drive a separately-excited DC motor for application in Sohar, Oman...
A power electronic converter used to drive a separately-excited DC motor for application in Sohar, Oman as shown in Figure Q2. Let R = 0.25 , K = 0.62 V/rpm.Wb, (flux per pole) = 175 mWb. The used converter is a single-phase, controlled full-wave bridge rectifier. Assume the firing angle is 45°, and the average speed is 1300 rpm and torque constant K is 9.55 of K. Assuming the motor current is continuous; calculate the armature current drawn by the...
7. An 80 kW, 440 V, 800 rpm DC motor is operating at 600 rpm and...
7. An 80 kW, 440 V, 800 rpm DC motor is operating at 600 rpm and developing 75% rated torque is controlled by 3-phase, six-pulse thyristor converter. If the back emf at rated speed is 410 V, determine the triggering angle of the converter. The input to the converter is 3-phase, 415 V, 50 Hz ac supply.
Question (3) Speed Control [10 Marks A 50 hp, 220 V, 1500 rpm DC shunt motor...
Question (3) Speed Control [10 Marks A 50 hp, 220 V, 1500 rpm DC shunt motor with an armature resistance of 0.04 Q and a field resistance of 50 Q. The motor has compensating windings, so armature reactance can be ignored. Mechanical and core losses may be ignored also. The moter is driving a load toque that is proportional with speed, Ti a (n). The motor is driving a load with a line current of 80 A and an initial...
3) A saperately excited DC motor has the following parameters: Ra = 10 Ke = 0.4...
3) A saperately excited DC motor has the following parameters: Ra = 10 Ke = 0.4 V/rpm. Wb O = 0.2 Wb The motor speed is controlled by a full-wave bridge rectifier. The firing angle is set at 45, and the average speed is 1500 rpm. The applied AC voltage to the input of the bridge rectifier is 220Vrms - 50 Hz. a) (10p) Please draw the complete circuit. (converter + motor) b) (10p) Please find the armature current. c)...
solve it now
please
A 220 V, 1000 rpm, separately excited dc motor is fed from a three-phase controlled three-phase ac-dc converter through 220 V (line value-rms value), 50 Hz ac-source. It is required to apply 220 V (dc-value) across the motor terminals. What is the firing angle if the motor speed is 1000 rpm and takes 10 A ripple-free current. The armature resistance is 1 ohm. The field circuit with 198 ohms is fed from a fully controlled single-phase...
Open Book Exam A 220 V, 1000 V dc-sourc rpm, separately dc motor is fed from a dc-dc converter through 550 e with duty cycle 40 %. The motor speed is 1000 rpm when takes ripple free and armature resistance is 1 Ω. The motor constant is 6/π V/A-rad/s. The field circuit with 198 Ω is fed from a controlled single-phase rectifier and set to the maximum possible value. The ac source for field circuit is 220 V, 50 Hz....
6. The speed of a 150 HP, 650 V, 1750 rpm, separately excited DC motor is controlled by a 3- phase full converter. The converter is operating from 3-phase, 460 V, 50 Hz supply. The rated armature current of the motor is 170 A. The motor parameters are Ra = 0.099 2, La = 0.73 mH, and K.D=0.33 V/rpm. Neglect the losses in converter system. Determine i. No-load speed at firing angles a = 0º and a = 30°. Assume...
4. A 3-phase full-wave converter drive is feeding power to a 220 V, 20 A, 1000 rpm separately excited dc motor. The ac input to the converters are 415 V, 3-phase, 50 Hz, Y-connected supply system. The field is also controlled by a 3-phase full converter and is set to the maximum possible value. The armature resistance is 0.5 Q and the field resistance is 250 12. The motor voltage constant is 1.2 V/A rad/s. Assume continuous conduction and ripple...
Q2. (10 points) A 10 kW, 100 V, 1000 rpm dc shunt generator has armature resistance Ra = 0.1.2. The field current generating 100 V at no-load is 1.0 A. The magnetization characteristic at 1000 rpm is shown in figure below. The machine is operated as a separately excited dc generator at 1000 rpm with rated field current. Neglecting the armature reaction effect; (a) Determine full load armature current, la (b) Determine the terminal voltage at full load, with ly...
i. The speed of a separately excited dc motor is controlled by a one-phase full-wave converter. The field circuit is also controlled by a full-wave converter, see V supply) Vs pk-150V Ra-0.310 L Rf 152O E-63V α. 1-35A Figure 3 The AC supply voltage to the armature and field converters is one-phase, 150Vpeak, 50Hz. The armature resistance Ra-0.31Ω, the field circuit resistance Rf-152Ω, and the motor voltage constant is Kv-1.3V/A. The armature current corresponding to the load demand la-35A The...
A power electronic converter used to drive a separately-excited DC motor for application in Sohar, Oman as shown in Figure Q2. Let R = 0.25 , K = 0.62 V/rpm.Wb, (flux per pole) = 175 mWb. The used converter is a single-phase, controlled full-wave bridge rectifier. Assume the firing angle is 45°, and the average speed is 1300 rpm and torque constant K is 9.55 of K. Assuming the motor current is continuous; calculate the armature current drawn by the...
7. An 80 kW, 440 V, 800 rpm DC motor is operating at 600 rpm and developing 75% rated torque is controlled by 3-phase, six-pulse thyristor converter. If the back emf at rated speed is 410 V, determine the triggering angle of the converter. The input to the converter is 3-phase, 415 V, 50 Hz ac supply.
Question (3) Speed Control [10 Marks A 50 hp, 220 V, 1500 rpm DC shunt motor with an armature resistance of 0.04 Q and a field resistance of 50 Q. The motor has compensating windings, so armature reactance can be ignored. Mechanical and core losses may be ignored also. The moter is driving a load toque that is proportional with speed, Ti a (n). The motor is driving a load with a line current of 80 A and an initial...
3) A saperately excited DC motor has the following parameters: Ra = 10 Ke = 0.4 V/rpm. Wb O = 0.2 Wb The motor speed is controlled by a full-wave bridge rectifier. The firing angle is set at 45, and the average speed is 1500 rpm. The applied AC voltage to the input of the bridge rectifier is 220Vrms - 50 Hz. a) (10p) Please draw the complete circuit. (converter + motor) b) (10p) Please find the armature current. c)...
Most questions answered within 3 hours.
-
Document system components according to standards and procedures
(Implement and hand over system components) IT administrative
asked 21 seconds ago -
The college asked 700 students if they wanted a longer spring
break and 600 students said...
asked 8 seconds from now -
Determine the temperature (in Celsius) at which 1.00 mole of an
ideal gas will have a...
asked 24 minutes ago -
Japan’s combination of X and Y
Canada’s combination of X and Y
100x and 0y
50x...
asked 16 minutes ago -
[1] Household statistics include individuals living alone or in
groups in:
A) apartments.
B) military barracks....
asked 27 minutes ago -
What is the % w/v when 80 mL of a 2.0% solution is mixed with 50...
asked 31 minutes ago -
How can I solve the following using a TI83
Claim: Most adults would erase all of...
asked 43 minutes ago -
Analysis of 3-ethyl-3-buten-2-ol gave C, 72.13%; H, 11.92%.
Calculate the percent deviation of these results from...
asked 40 minutes ago -
Which VALS segment is most likely to have a top of the line
brand new (2015)...
asked 44 minutes ago -
Write a program to score the paper-rock-scissor game. Each of
two users types in either P,R...
asked 1 hour ago -
Calculate the equillibrium constent K for a redox reaction that
has E°cell = -.98 V at...
asked 1 hour ago -
A concave spherical mirror has a radius of curvature of
magnitude 19.6 cm.
(a) Find the...
asked 1 hour ago