Transformer Connection, Y-Y
Transformer Connection, Y-Y
(OP)
Is it possible to connect a Y-Y transformer so that the secondary has a 60 degree phase shift. If yes, how is this accomplished.
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Transformer Connection, Y-Y
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Transformer Connection, Y-YTransformer Connection, Y-Y(OP)
Is it possible to connect a Y-Y transformer so that the secondary has a 60 degree phase shift. If yes, how is this accomplished.
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RE: Transformer Connection, Y-Y
Now report back to the group on the Hoepner connection.
RE: Transformer Connection, Y-Y
In practice you can get two possible combinatios: Yy2 or Yy10. Both require the inversion of one side (preferably low voltage side, as hight voltage side could face some dielectric problems). For detaled connetions, let's assume that A, B, C and a, b, c, are HV and LV windings in positive sequence for original transformer Yy0, and A*, B*, C* and a*, b*, c* the new transformer windings. Then:
For Yy2 connection group:
A*=A; B*=B; C*=C; a*=-c; b*=-a; c*=-b
And for Yy10 connection group:
A*=A; B*=B; C*=C; a*=-b; b*=-c; c*=-a
Julian