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Topics: Upgrade lv vsd to mv vsd on AC Drives
#1
Start by
Asriya Fadhil
10-07-2013 09:17 PM

Upgrade lv vsd to mv vsd

dear all,is possible to upgrade lv vsd to mv vsd only by changing dc choke rate due to scr and igbt rating are depend on amperage? what are the impact?
10-07-2013 11:56 PM
Top #2
ABHISHEK SAXENA
10-07-2013 11:56 PM
No, both VFD work on different technology
10-08-2013 02:43 AM
Top #3
Joe Halliday
10-08-2013 02:43 AM
Use a step up/step down transformer. ...
10-08-2013 04:52 AM
Top #4
Asriya Fadhil
10-08-2013 04:52 AM
Abhisex, is there any possibility to upgrade low voltage (380V as SCR input) to MV (medium voltage as SCR input) due to SCR, IGBT and changing DC link are working at MV side? and others only use as switching and monitoring (sensor) component.

Joe, my costumer doesn't provide step down transformer. I just dream many flexibilities could be achieved if I can do some modification and be accepted. You could tell me something about MV drive if you don't mind. Thank
10-08-2013 07:48 AM
Top #5
ABHISHEK SAXENA
10-08-2013 07:48 AM
MV is acheived by parallel & series of multiple LV systems. in 3.3KV it is made of 6, 6.6 KV of 9 & 11KV by 12 LV units each of 690Volt.
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