Motor Regeneration Inverter Damage?
Motor Regeneration Inverter Damage?
(OP)
Hello,
Can anybody tell me the implications of turning on an already running inverter driven 3 phase ac induction motor i.e i'm designing a bypass system for the invertor and want to know the implications of switching it from bypass whilst it is running!
Can this cause damage to the Inverter?
My application is a large oven circulation fan 415v 4kw, 1750 rpm medium load.
Can anybody tell me the implications of turning on an already running inverter driven 3 phase ac induction motor i.e i'm designing a bypass system for the invertor and want to know the implications of switching it from bypass whilst it is running!
Can this cause damage to the Inverter?
My application is a large oven circulation fan 415v 4kw, 1750 rpm medium load.





RE: Motor Regeneration Inverter Damage?
It is possible to synchronize an inverter with the power line and do a closed transition, but that is difficult to do and rarely considered to be worthwhile.
RE: Motor Regeneration Inverter Damage?
RE: Motor Regeneration Inverter Damage?
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RE: Motor Regeneration Inverter Damage?
The principal is to assume that the frequencys of both sources are not exactly equal and to wait until they are in sync. before making the transfer. It is a lot easier than trying to force the invertor frequency to sync. with the mains frequency.
Remember the story of the little boy shouting
"Shoo, Shoo, ##### off!" to a swarm of flies.
A passing clergyman took exception.
"Little boy. You shouldn't use such language. It is not nice and it is not nescessary. Just say 'Shoo, shoo!' The flies will #### off be themselves."
Don't try to force an invertor into sync. Just wait 20 or 30 seconds and it will go into sync. by itself.
respectfully
RE: Motor Regeneration Inverter Damage?