Transcript Aucun titre de diapositive

Motor torque in delta 87Hz
ATV71
ATV71
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The isolate d motor voltage and the c ontrol of flux by the drive allows the va riable
speed driv e to make a 50HZ motor configured in delta turn w ith consta nt torque up
to 8 7Hz (104Hz for a 60Hz m otor).
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In this case the initial power of the m otor is multiplied by 3 so it is nec essary to
choose a drive adapte d for this pow er.
– Example : a 2 ,2 kW, 50 Hz motor wye connected will gen erate a power of 3,8 kW at
87 Hz when co nnecte d in del ta.
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Enter t he delta m otor name plate da ta
– UNS = 2 20, FRS=50, NCR=6.4, NSP=1420, COS =0.80 do an auto-tu ne(TUN)
– Set Tfr >=8 7hz to a uth orize this frequ ency in HS P
11/ 04/ 2005 B ert ra nd Guarinos STIE
ATV71 M3 m ot or c ont rol R3
Summary
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