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marke

Member Since 24 Apr 2002
Offline Last Active Yesterday, 02:12 AM
*****

Posts I've Made

In Topic: Cscape 9.8 Sp3 Released

21 November 2018 - 02:06 AM

Horner have released CScape 9.8 SP4

 

Best regards,

Mark.


In Topic: Aucom Electronics Celebrates 40 Years

21 October 2018 - 10:50 PM

Thanks Mario,

I exited in 2001, so not involved today, but a good milestone.


In Topic: Running 03Nos Single Phase Motors By A 3Phase Vfd

30 May 2018 - 08:25 PM

Hello AB2005

 

If the three motors are identical, and all operate at the same time, and at the same load, and are shaded pole motors, then this will work fine.

If the motors have a start winding along with a start switch to connect and disconnect that winding, then the impedance will be so variable, that the voltage applied to each motor will change and there will be issues.

 

It works well for shaded pole fan motors, but some of these motors do not like the PWM waveform and can overheat with increased slip losses.

 

There is a VFD designed for use with single phase motors, you would need one VFD per motor.

 

Best regards,

Mark


In Topic: Genset Sizing

11 May 2018 - 12:44 PM

This page seems to have gone now.


In Topic: Starting A 30Kw Motor By Soft Starter

22 January 2018 - 07:34 AM

If you provide this information to the motor manufacturer, they should be able to tell you the number of starts that is OK.


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