Voltage Transients Tripping VFDs
Voltage Transients Tripping VFDs
(OP)
I have a customer that's been complaining that their VFD's been tripping offline due to voltage spikes, and it was determined that the spikes or transients were from the switching online of a nearby capacitor bank. What are the different options the customer have to protect his VFD's from voltage transients? I know customers should install a UPS to protect their computers, so should they install a UPS to protect their VFDs? Thanks.






RE: Voltage Transients Tripping VFDs
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RE: Voltage Transients Tripping VFDs
RE: Voltage Transients Tripping VFDs
But then, a UPS of this type is more or less a VFD running at a fixed 60Hz output so the over-voltage transients could just begin to trip the UPS instead....
RE: Voltage Transients Tripping VFDs
You really need to find out more about the switching transients so you can design a solution - a storage 'scope with a decent single-shot bandwidth allied with a reasonably high bandwidth isolation probe would allow you to see what is happening safely.
A UPS seems excessive to me.
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If we learn from our mistakes I'm getting a great education!