A topic that: a three-phase transformer wiring is YN, Y, a0, d11, all mean what? Three-phase transformer how four ways to connect it?
If the three-phase transformer has four windings can not have four kinds of wiring way?
This is the wrong label. The reason is as follows:
1, regardless of the winding of several transformers, its high voltage (primary side, input) may only be a set of windings. Which transformer has two inputs ah! Because only the representation of high-voltage connection, only with capital letters.
2, so the second letter (Y) is wrong, maybe redundant. Obviously, this is a three-winding transformer, the high voltage is Y connected, and there are zero line leads. The medium pressure and the high pressure are autocouple, so it is a0. A0 of course shows that the medium pressure in the phase with the high pressure phase. Is it mistaken for here that u should be u? The The
3, low pressure, of course, do not have to say is d then.
4, now the new standard of writing is not used (,) number to separate. If this is a standard three-winding transformer (the second winding is auto-coupled). Then it is: "YNa0d11"
Convenient words, give an echo.
So you take a closer look, whether as I said. Title may be wrong in expression.
Three-phase transformer solution Yy Dd Yd Dy these four connections each connection there are many connections such as Yy-10
According to the original side of the different phase has a different solution, and whether the grounding (N) connection is also different
