Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
أسئلة فى المحولات جديد
1. vector group
y d11yd1
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-
-
-
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three wire system or four wire system
vector group
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Transformer vector group
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Delta (D,d
Star (Y,y
N,n ). Connection of network point (star connect
2. -------
H.V take capital letter & L.V tak small letter
n=1
------
L.VH.V
- Lead connection means L.V ladds H.V by 30
YN d5 ,Dyn 1 ,Dyn 11 ------->two winding
YN yn yn------------->three winding
D
H.V & L.V
H.V side -
Y d
YH.V
dL.V
D y n1H.V sidedL.V side
neutralL.V sideH.V side
YN d5H.VsideneutralL.V side
L.V sideH.V side
H.V &L.VLeadLag
H.VReferencePhase shiftReference
Reference----------
Lag reference --
H.V phase shift
Yd11L.VH.V ------
Yd1
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