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Postcode for Kidderminster in the West Midlands, UK.

Also a vector group (connection configuration) of a 3-phase transformer.D - Means Delta Wound Primary

Y - Means Wye (Star) Wound Secondary

11 - Is the phase shift between the two windings. The 11 refers to 11 on a clock face, hence 30 degrees.

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12y ago
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11y ago

It means Transformer Primary Side is Delta and is having two Secondary Windings with phase difference of 30 degree lead. (DELTA STAR STAR )

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Q: What is Dy11y11?
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