what is full form of dyn11( in transformer)
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Answer Posted / meenakshi
i agree vid anil...to b more specific,Phase rotation is
always anti-clockwise. (international adopted convention)
we use the hour indicator as the indicating phase
displacement angle. Because there are 12 hours on a clock,
and a circle consists out of 360°, each hour represents
30°.
Thus 1 = 30°, 2 = 60°, 3 = 90°, 6 = 180° and 12 = 0° or
360°.
The minute hand is set on 12 o'clock and replaces the line
to neutral voltage (sometimes imaginary) of the HV winding.
This position is always the reference point.
Because rotation is anti-clockwise, 1 = 30° lagging (LV
lags HV with 30°)and 11 = 330° lagging or 30° leading (LV
leads HV with 30°)
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