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Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
It is against the law for a monster to enter the corporate limits of
Urbana, Illinois.
Urbana, Illinois.
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from the Forum department...
Running induction motors beyond the rated speed using VSD
Is it possible to run the induction motor beyond the rated speed using VSD?
Yes and No.
You can run beyond the synchronous speed (1800 or 3600 RPM is typical in the USA) in most cases. Torque will start dropping linearly, power will remain constant. If the motor has a maximum rated RPM beyond the synchronous speed (a VFD rated motor should), then you should not exceed it without contacting the mfg for advice.
You can run beyond the synchronous speed (1800 or 3600 RPM is typical in the USA) in most cases. Torque will start dropping linearly, power will remain constant. If the motor has a maximum rated RPM beyond the synchronous speed (a VFD rated motor should), then you should not exceed it without contacting the mfg for advice.
From Control Engineering magazine...
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Above articles copyright 2009 Reed Business Information.
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