suppose we want to run several motors with only one drive then what are the advantages or difficulties that we might face and what are the limitations of this application ?
2006-08-21 20:21:30 · 6 answers · asked by impossible is untried... 1 in Science & Mathematics ➔ Engineering
The only advantage is you only have to buy one drive. The disadvantages are going to be numerous. Tuning the motor to your application. They are going to receive the same voltage, but not all motors are created equally. One of them will more than likely run slower than the other and it is going to be impossible to tune one without affecting the other. If this does not concern you then just be sure to get a drive big enough to run as many motors as you'd like. Just fuse each motor in accordance with the name plate data.
2006-08-21 20:33:17 · answer #1 · answered by up all night 4 · 0⤊ 0⤋
Depends on the type of drive that you have. If you mean AC drives (Variable Frequency types), then there are two drive types available, normal V/f Drives and Sensorless vector drives.
Identically rated motors may be connected in parallel to simple v/f drives, but not to sensorless vector drives as it monitors the torque and current through the windings.
In some digital drives, the motor may not start at all and in some drives, it may trip during acceleration.
Never connect motors of different ratings in parallel to any drive.
2006-08-22 12:41:10 · answer #2 · answered by kkonline 3 · 0⤊ 0⤋
Any more than 2, and at least one will be working against the cycle that the motors are creating. There are only two ways a drive can spin - clockwise, and counterclockwise - so, if one motor is spinning clockwise, and the other bolstering it going counter, then a third is going to counter ONE of those.
And that makes for expensive repairs....:)
2006-08-22 03:29:50 · answer #3 · answered by Scott Rinke 2 · 0⤊ 0⤋
2 at a time
2006-08-22 03:26:37 · answer #4 · answered by TIMEPASS 3 · 0⤊ 0⤋
Depends what you call "the drive".
A DC motor receives power from a "driver" (electronic control or even just a battery).
In that case, it is your driver that limits the number of motors (I assume that all motors are connected in parallel).
The number of motors you can use is:
Power of the driver / power of motors.
(A 12V-100A driver could drive 10 12V-10A motors) (in DC. In AC, you have to correct for the cos(PHI) of the motors).
2006-08-22 05:48:54 · answer #5 · answered by just "JR" 7 · 0⤊ 0⤋
what sort of motors?
If you mean internal combustion engines to power a single drive it would be best if you connected them through a suitable transmission, such as electric or hydrostatic transmission, that would reduce the effect of one motor loading the others.
2006-08-22 04:20:30 · answer #6 · answered by Anonymous · 0⤊ 0⤋