# Wye delta conversion

Discussion in 'Homework Help' started by arnold1, Sep 15, 2010.

1. ### arnold1 Thread Starter New Member

Sep 15, 2010
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Can any one help me with the following question?

I am not sure how to convert the following wye delta figure from the right to the left as shown in the following diagram

A step by step would be much appreciated

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2. ### t_n_k AAC Fanatic!

Mar 6, 2009
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First convert just the delta capacitor part (three by -j36Ω) of the network to a star (wye) equivalent. The start point of this conversion is then tied to the star point of the three (9+j12) elements. The equivalent capacitive elements in each wye arm are then effectively in parallel with a (9+j12) element. Calculate this parallel value and you then have the three equal unknown impedances shown in figure 2-b.

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3. ### arnold1 Thread Starter New Member

Sep 15, 2010
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This makes perfect sense, should have seen it before, thanks.

Jan 28, 2005
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