Boost Voltage in V/Hz Drive Mode

Thread Starter

alexfrey

Joined Feb 23, 2019
22
I saw that in V/Hz mode boost voltage should be provided to make the motor start under 5 hz. But what is the reason of that ? Can someone explain it with mathemetical and electrical infos ?

Thanks
 

THICKO

Joined Jun 10, 2016
14
This is to give a torque boost at startup normally.
Things like pumps etc may need a 'kick' to get them away at low frequency.
 
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