DYN11 TRANSFORMER PDF

DYN11 TRANSFORMER PDF

What happen if we use DYn1 vector group for distribution transformer? that the structure DYn11 is also simple in comparison with some other vector groups. What is the meaning of Dyn11 of Transformer Answer / devidas. First symbol/ symbols, capital letters: HV winding connection. Second symbol/symbols, small. In theory a three-phase transformer works like three separate transformer’s rating plate. Dyn Yyn0. Yd1. Yd Dz0. Yz1. Yz

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Electric power & transmission & distribution FAQ

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. All theories claim that there is a phase displacement of deg between the voltage in primary and secondary.

How this phase shift is over come when designing a transformer? For example a Dyn11 Transformer is having only 30 Deg phase shift and not plus or minus 30 Deg.

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What is the meaning of Dyn11 of Transformer.

If you wind two coils together on a core and you applied AC to one of them and then used an oscilloscope to look at the voltage waveforms on the driven coil and the undriven coil you will find that the two AC voltages are in phase. They are only degrees out of phase if you reversed the scope connections to one of the windings.

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This can be easily proven by considering the same two windings being put in parallel and driven by an AC signal – if one were naturally prone to produce a degrees phase shift then when connecting them in parallel across an AC source, infinite current would flow. For the DYN 11 configuration you have to understand 3phase theory. Here’s the phasor diagram that explain the 30 degree phase shift: See also this stack exchange answer for more details on the 30 degree phase shift.

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