101
Program code Key operations
Wait i 3 e
Z√=R©R… @ v 1 ; = ; R
z @ v 5 e
Print Z√ i 0 @ v 1 e
Wait i 3 e
Z…=R©R≥ @ v 2 ; = ; R
z @ v 3 e
Print Z… i 0 @ v 2 e
End i 5 e
Example
When the impedances Z1, Z2, Z3 of a delta impedance circuit are 70, 35,
140 respectively, obtain the impedances R1, R2, R3 of a Y circuit.
4. Press j to return to the PROG mode menu.
5. Press 0, select the program ‘DELTAY’
and press e.
The direction of transformation will be
asked.
6. Press 1 e to select ‘DELTA TO Y’ transformation.
7. Enter 70 for Z1, 35 for Z2 and 140 for Z3.
Result
The impedances R1, R2, R3 of the targeted Y impedance circuit are 10, 20
and 40, respectively.
Chapter 8: Application Examples
(1)DELTA TO Y
(2)Y TO DELTA
X=?
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