الأحوة الكرام
السلام عليكم ورحمة الله وبركاته
و صلنى على البريد الألكترونى مجموعة محاضرات من الأخ Mohamad A. AlHajeri
جزاه الله عنا كل خير و جعلها الله فى ميزان حسناته
المحاضرة الأولى تحتوى على :
At the end of the Lesson the Trainees will be able to:
Define an electric motor.
Describe the forces, which produce torque in an electric motor.
Name and briefly describe the two main parts of a typical electrical motor.
List most commonly used types of single-phase AC motors.
المحاضرة الثانية تحتوى على:
SUB-******IVE
At the end of this lesson, the trainee will be able to :
1. List and briefly describe major components of a typical DC motor.
2. State the function of and briefly describe the construction of the brush gear.
3. Define each of the following DC motor variables and describe general methods used for its control : -
a. Torque
b. Starting current
c. Speed
d. Rotation direction
4. Using labeled diagrams, describe connections for each of the following types of DC motors
a. Shunt
b. Series
c. Compound
5. Describe the following characteristics of each of the three types of DC motors:
a. Speed
b. Torque
6. State the function of the starting rheostats and briefly describe their operation.
7. Describe construction and operation of a typical DC motor speed controller.
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