5/29/2013 12:09 PM | |
Posts: 467 Rating:
|
Dear lufego,3RW44 soft starters have thyristors in all three phases. The 3RW30/3RW40 soft starters have thyristors only in two out of the three phases. The third phase is directly wired through. That’s why 3RW30/3RW40 is not suitable for inside delta connection. Also the included technology of 3RW30/3RW40 is not desgined for inside Delta circuit.So if inside Delta connection is really required I recommend a 3RW44 soft starter.But I do not understand why you need an inside Delta circuit. If the motor has 6 windings – is it a Dahlander/multi speed motor?If yes then please have a look at the 3RW30/3RW40 manual chapter 15.11 to find typical circuit diagrams for 3RW40 with Dahlander motors.Download: Manual for SIRIUS 3RW30 / 3RW40 soft starters http://support.automation.siemens.com/WW/view/en/38752095 regards LesPaul |
This contribution was helpful to
3 thankful Users |
Follow us on