Siemens MICROMASTER 440 - Recommended Power Supplies for 3 Ph Connection

Issue 08/03
22 Quick Start Guide MICROMASTER 440
6SE6400-5GA00-0BP0
2.4 Recommended Power Supplies for 3ph Connection
Figure 2-7 - Recommended Power Supplies
NOTE
For ALL other line configurations an isolation transformer should be used with a grounded Wye
secondary.
3ph Drive
L1
L2
L3
PE
3ph Drive
L1
L2
L3
PE
Wye Connection – High resistance to ground
Delta Connection – One phase grounded
3ph Drive
L1
L2
L3
PE
Delta Connection – One phase with high
resistance to ground
3ph Drive
L1
L2
L3
PE
Wye Connection – With Station Ground
3ph Drive
L1
L2
L3
PE
Delta Connection – One phase grounded
Station Ground
Station Ground
3ph Drive
L1
L2
L3
PE
Wye Connection – Neutral referred to ground
Remove Y Capacitor
Remove Y Capacitor
Remove Y Capacitor
Remove Y Capacitor
Remove Y Capacitor
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