Delta C1000 User Manual

B.1 Technical requirement of two-winding transformer
- The voltage impedance should line between 4.0-6.6%
- The vector grouping of two-winding transformer can be Dy11, YNd11 or Dd0
* Please use DC+ to earth ground or DC- to earth ground if YNd11 is applied.
B.2 Technical requirement of three-winding transformer
-
The impedance voltage between each low voltage winding and high voltage should lie
between 4.0-6.6%.
- The impedance voltage between two low voltage winding should lie between 9~11%.
MV
LV
U1
V1
W1
Dy11
MV
LV
U1
V1
W1
U2
V2
W2
N1
YNd11 Dd0
MV
U1
V1
W1
LV
U2
V2
W2
* Please use DC+ to earth ground or DC- to earth ground if YNd11d11 is applied.
- The vector grouping of three-winding transformer can be Dy11y11, YNd11d11, Dd0d0
or Dyn1yn1.
-
If Dyn11yn11 or Dyn1yn1 does apply, to left both the Neutral point of low voltage
winding unconnected and ungrounding.
MV
LV
U1
V1
W1
U2
V2
W2
U3
V3
W3
Dy11y11 Dd0d0
MV
LV
U1
V1
W1
N1
U2
V2
W2
U3
V3
W3
LV
MV
U1
V1
W1
YNd11d11
U2
V2
W2
U3
V3
W3
84
Appendix C: Delta MV Transformer and Auxiliary Power transformer Application Note

Delta C1000 Specifications

General

Brand	Delta
Model	C1000
Category	Inverter
Language	English