enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Scott-T transformer - Wikipedia

   en.wikipedia.org/wiki/Scott-T_transformer

   Assuming the desired voltage is the same on the two and three phase sides, the Scott-T transformer connection (shown right) consists of a centre-tapped 1:1 ratio main transformer, T1, and a √ 3 /2(≈86.6%) ratio teaser transformer, T2. The centre-tapped side of T1 is connected between two of the phases on the three-phase side.

3. Zigzag transformer - Wikipedia

   en.wikipedia.org/wiki/Zigzag_transformer

   Nine-winding, three-phase transformers typically have three primaries and six identical secondary windings, which can be used in zigzag winding connection as pictured. [1] A conventional six-winding, grounding transformer or zigzag bank, [1] with the same winding and core quantity as a conventional three-phase transformer, can also be used in ...

4. Delta-wye transformer - Wikipedia

   en.wikipedia.org/wiki/Delta-wye_transformer

   A delta-wye transformer is a type of three-phase electric power transformer design that employs delta-connected windings on its primary and wye/star connected windings on its secondary. A neutral wire can be provided on wye output side. It can be a single three-phase transformer, or built from three independent single-phase units.

5. High-leg delta - Wikipedia

   en.wikipedia.org/wiki/High-leg_delta

   High-leg delta service is supplied in one of two ways. One is by a three-phase transformer (or three single-phase transformers), having four wires coming out of the secondary, the three phases, plus a neutral connected as a center-tap on one of the windings. Another method (the open delta configuration) requires two transformers.

6. Vector group - Wikipedia

   en.wikipedia.org/wiki/Vector_group

   The number is in units of 30 degrees. For example, a transformer with a vector group of Dy1 has a delta-connected HV winding and a wye-connected LV winding. The phase angle of the LV winding lags the HV by 30 degrees. Note that the high-voltage (HV) side always comes before the low-voltage (LV) side, regardless of which is the primary winding.

7. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   A transformer supplying a three-wire distribution system has a single-phase input (primary) winding. The output (secondary) winding has a center tap connected to a grounded neutral. As shown in Fig. 1, either end to center has half the voltage of end-to-end. Fig. 2 illustrates the phasor diagram of the output voltages for a split-phase transformer.