Question

Q8) What happens if the drive- motor speed decreases to 1200 rpm?

Q8) What happens if the drive- motor speed decreases to 1200 rpm?

Homework Answers

Answer #1

This answer need to know the number of poles, frequency at the drive used, voltage values as only the speed is given in numerical only. Also the type of Motor is to be mentioned i.e., an induction motor or synchronous motor or other to be answered specifically!

Generally the speed decrease in motor effects the active power usage during running conditions...

It also represent sudden drop of frequency or decrease in frequency

Torque increases with decrease in speed ...

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 100 hp, 250 V, 1200 rpm DC shunt motor with an armature resistance of 0.03...
A 100 hp, 250 V, 1200 rpm DC shunt motor with an armature resistance of 0.03 ? and a field resistance of 41.67 ?. The motor has compensating windings, so armature reactance can be ignored. Mechanical and core losses may be ignored also. The motor is driving a load with a line current of 126 A and an initial speed of 1103 rpm. The magnetization curve is shown in the following figure. 1. What is the motor speed if the...
A motor is needed to drive a load requiring a torque of 3 kgf-cm. The motor...
A motor is needed to drive a load requiring a torque of 3 kgf-cm. The motor that is readily available has a stall torque of 23 kgf-cm and a no-load speed of 4500 rpm. At what speed would you estimate that this motor would drive the load?
A disc has a speed of 1200 rpm and it is made to slow down at...
A disc has a speed of 1200 rpm and it is made to slow down at a uniform rate of 4 rad/s2.Calculate the number of revolution it makes before coming to rest?
A three-phase, 60-Hz, 4-pole, 440-V (line-line, rms) induction-motor drive has a full-load (rated) speed of 1746...
A three-phase, 60-Hz, 4-pole, 440-V (line-line, rms) induction-motor drive has a full-load (rated) speed of 1746 rpm. The rated torque is 40 Nm. Keeping the air gap flux-density peak constant at its rated value. The frequency and voltage of the motor from above are adjusted such that the fan speed is changed to 600 rpm. The motor should be operating at 3% slip and rated Bm. What is the motor efficiency?
Calculate the input current of an induction motor if the motor speed is 1720 rpm. Use...
Calculate the input current of an induction motor if the motor speed is 1720 rpm. Use the 60 Hz four-pole, 480V motor data per phase are: Vm: =480V , Rm: = 65ohms , Xm: = 35ohms , P:= 4 Rsta: = 0.1ohms , Xsta = 0.35 ohms , Rrot = 0.125ohms , Xrot = 0.4ohms
A 210 V, 1200 rpm, 10 A separately excited motor is controlled by 1- phase fully...
A 210 V, 1200 rpm, 10 A separately excited motor is controlled by 1- phase fully controlled converter with an ac source voltage of 230 V, 50 Hz. Assume that sufficient inductance is present in the armature circuit to make to motor current continuous and ripple free for any torque greater than 25% of rated torque, and Ra = 1.5 Ω. i. What should be the value of the firing angle for the rated torque at motoring +ve (1200rpm) ii....
10. a) The angular speed of a motor wheel is increased from 1725 rpm to 3172...
10. a) The angular speed of a motor wheel is increased from 1725 rpm to 3172 rpm in 15 seconds. i) What is its angular acceleration? ii) How many revolutions does the engine make during this time?
A separate excited DC motor is running at 1000 rpm when the armature voltage is 600...
A separate excited DC motor is running at 1000 rpm when the armature voltage is 600 V. The motor has a field constant Kphi = 4 V.sec and the armature resistance of the motor is 0.8 Ohms. i. Calculate the value of the resistance of the dynamic braking at full load. The armature current should be limited to 200 % of the rated value. ii. If the motor operates in regenerative braking at a speed of 1200 rpm, calculate the...
A three phase, 4 pole induction motor has the nominal speed of 1425 rpm. If the...
A three phase, 4 pole induction motor has the nominal speed of 1425 rpm. If the stator, rotor and airgap losses are all the same what is the efficiency of the machine?
A 6-pole winding linear induction motor is provided, driven at a speed of 1050 rpm, and...
A 6-pole winding linear induction motor is provided, driven at a speed of 1050 rpm, and the resistance on the secondary side 1 is 0.04 [ohm]. Determine the number of revolutions [rpm] when changing the resistance of the secondary circuit to three times.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT