Question

Q1. please answer the following only without any explain anything wanted to compare my answers with yours

23 Introduction to AC Drives

1. The inductive_______ of a motor increases as the applied frequency increases.

1. Kick
2. Feedback
3. Reactance
4. Voltage drop

2. To minimize electrical noise, _______ cable should be used to connect the drive to the motor.

1. Double
2. Single strand
3. Solid
4. Shielded

3. To prevent injury the user should wait________ minutes after powering down a powerFlex 70 drive before working on it

1. 60
2. 30
3. 15
4. 5

4. VFDs are used to control the speed and torque of __________ motors.

1. DC
2. AC
3. Wound rotor
4. Universal

5. The powerFlex 70 drive construction is modular with the ________ module mounted on the heat sink.

1. Power
2. I/O
3. DPI
4. Feedback

6. A powerFlex 70 drive can operate at a V/H, __________ vector , and flux vector performance level.

1. Full
2. Flux
3. Sensorless
4. Six-step

7. Some general purpose and most _________ drives can operate at the sensorless vector level.

1. Servo
2. Vector
3. Current
4. Motion

8. A flux vector drive emulates a(n)_________.

1. DC motor
2. AC motor
3. Universal motor
4. Wound rotor motor

1. A(n)_________ drive provides speed and torque regulation without using encoders or resolvers.

1. Vector
2. General purpose
3. Servo
4. Sensorless Vector

10. The startup steps must be performed ____________ to complete the startup.

1. In detail
2. In order
3. Daily
4. Monthly

Answer 1

1) The inductive REACTANCE of a motor increases as the applied frequency increases.

2) To minimize electrical noise,SHIELDED cable should be used to connect the drive to the motor.

3)To prevent injury the user should wait 5 minutes after powering down a powerFlex 70 drive before working on it

4)VFDs are used to control the speed and torque of AC motors.

5)The powerFlex 70 drive construction is modular with the I/O module mounted on the heat sink.

6)A powerFlex 70 drive can operate at a V/H, SENSORLESS vector , and flux vector performance level.

7) Some general purpose and most SERVO drives can operate at the sensorless vector level.

8) A flux vector drive emulates a(n) AC MOTOR.

9) A(n) SERVO drive provides speed and torque regulation without using encoders or resolvers.

10) The startup steps must be performed DAILY to complete the startup.

THANKYOU SIR/MADAM..Hope this helped you.