Transformer Vector
Transformer Vector
(OP)
what is meant by -Ydn1? The transformer is an oil filled design - 7100kVA with LV = 800V Delta with 45kVBIL and HV = 26000V Wye with 150kVBIL and an ESS (electro-static shield) grounded.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: Transformer Vector
Y - star or wye connected primary
d - delta connected secondary
n - externally available neutral. In this position and lower case it denotes a secondary neutral which seems odd. YNd1 would makem more sense.
1 - voltage on the secondary 'a' terminal leads the voltage on the primary 'A' terminal by 30° phase shift.
The shield is to reduce the common-mode coupling of impulses on the primary through to the secondary.
RE: Transformer Vector
RE: Transformer Vector
RE: Transformer Vector
RE: Transformer Vector
RE: Transformer Vector
Shouldn't it be "lags" instead of "leads"? The HV 'A' phase leads the LV 'a' phase.
RE: Transformer Vector