three-phase, star-connected, 7460 kW, 6000V, 50 Hz synchronous motor
three-phase, star-connected, 7460 kW, 6000V, 50 Hz synchronous motor
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...
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Question
A three-phase, star-connected, 7460 kW, 6000V, 50 Hz synchronous motor has a power factor of 0.8, while its efficiency is 92% when feeding a load upstream. This motor has an armature resistance of 0.5 Ω and a synchronous reactance of 4.2 Ω. The stator windings are connected to an infinitely powerful network. A mechanical load equal to 75% of the rated load is connected to the shaft of the motor. According to this;
a)Enter the amplitude value of the current passing through the phase windings of the motor.
b) Calculate the pole wheel voltage induced in the motor
c) Calculate the load angle.
ç) Enter the value of the internal phase angle.
![Üç fazlı, yıldız bağlı, 7460 kW, 6000V, 50 Hz 'lik bir senkron motorun güç faktörü 0,8 ileride olan bir yükü beslerken verimi %92'dir. Bu motorun endüvi direnci 0,5 Q ve senkron reaktansı 4,2 Q'dur. Stator sargıları sonsuz güçlü bir
şebekeye bağlanmıştır. Motorun miline anma yükünün %75'ine eşit bir mekanik yük bağlanmıştır. Buna göre;
a) Motorun faz sargılarından geçen akımın genlik değerini giriniz.(
Yanıt:
b) Motorda indüklenen kutup tekerleği gerilimini hesaplayınız.(
Yanıt:
c) Yük açısını hesaplayınız.(.
Yanıt:
c) İç faz açısının değerini giriniz. ( Sonuç virgülden sonra iki haneli olarak girilecektir)
Yanıt:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd00b6bdf-d77b-425d-8201-7ff8ff1b0177%2Fa4056294-a24d-4568-a1b4-2aa858929432%2Fo6ojgy9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Üç fazlı, yıldız bağlı, 7460 kW, 6000V, 50 Hz 'lik bir senkron motorun güç faktörü 0,8 ileride olan bir yükü beslerken verimi %92'dir. Bu motorun endüvi direnci 0,5 Q ve senkron reaktansı 4,2 Q'dur. Stator sargıları sonsuz güçlü bir
şebekeye bağlanmıştır. Motorun miline anma yükünün %75'ine eşit bir mekanik yük bağlanmıştır. Buna göre;
a) Motorun faz sargılarından geçen akımın genlik değerini giriniz.(
Yanıt:
b) Motorda indüklenen kutup tekerleği gerilimini hesaplayınız.(
Yanıt:
c) Yük açısını hesaplayınız.(.
Yanıt:
c) İç faz açısının değerini giriniz. ( Sonuç virgülden sonra iki haneli olarak girilecektir)
Yanıt:
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